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level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">How To Guides</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a class="nav-link"><span class="title">Common Charts</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a class="nav-link"><span class="title">Bar</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level3" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/chart-types/bar/basic-bar" class="nav-link"><span class="title">Basic Bar</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/how-to/chart-types/bar/stacked-bar" class="nav-link"><span class="title">Stacked Bar</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/how-to/chart-types/bar/bar-race" class="nav-link"><span class="title">Bar Racing</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><!----><li class="nav-item"><a href="/handbook/en/how-to/chart-types/bar/waterfall" class="nav-link"><span class="title">Waterfall</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Line</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level3" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/chart-types/line/basic-line" class="nav-link"><span class="title">Basic Line</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/how-to/chart-types/line/stacked-line" class="nav-link"><span class="title">Stacked Line</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><li 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style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/how-to/chart-types/pie/doughnut" class="nav-link"><span class="title">Ring Style</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/how-to/chart-types/pie/rose" class="nav-link"><span class="title">Rose Style</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Scatter</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level3" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/chart-types/scatter/basic-scatter" class="nav-link"><span class="title">Basic Scatter</span></a> <ul class="nav bd-sidenav level4" style="display:none"></ul></li></ul></li></ul></li><!----><li class="nav-item"><a class="nav-link"><span class="title">Cross Platform</span> <span class="glyphicon 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Text</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Animation</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/animation/transition" class="nav-link"><span class="title">Data Transition</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li><li class="nav-item"><a class="nav-link"><span class="title">Interaction</span> <span class="glyphicon glyphicon-menu-down"></span></a> <ul class="nav bd-sidenav level2" style="display:none"><li class="nav-item"><a href="/handbook/en/how-to/interaction/drag" class="nav-link"><span class="title">Drag</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li><!----><li class="nav-item"><a href="/handbook/en/how-to/interaction/coarse-pointer" class="nav-link"><span class="title">Intelligent Pointer Snapping</span></a> <ul class="nav bd-sidenav level3" style="display:none"></ul></li></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Best Practices</span></div> <ul class="nav bd-sidenav level1"><!----><li class="nav-item"><a href="/handbook/en/best-practices/canvas-vs-svg" class="nav-link"><span class="title">Canvas vs. SVG</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li><li class="nav-item"><a href="/handbook/en/best-practices/aria" class="nav-link"><span class="title">Aria</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li><li class="nav-item"><div class="nav-link"><span class="title">Edit Handbook</span></div> <ul class="nav bd-sidenav level1"><li class="nav-item"><a href="/handbook/en/meta/edit-guide" class="nav-link"><span class="title">Edit Guide</span></a> <ul class="nav bd-sidenav level2" style="display:none"></ul></li></ul></li></ul></div> <div class="open-sidebar"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"></path></svg></div></div> <div class="bd-content col-sm-7 pl-sm-2 col-12"><div class="post-content content"><div><div class="post-inner"><!----> <div class="nuxt-content"><article><h1 id="overview-of-style-customization" tabindex="-1">Overview of Style Customization</h1> <p>This article provides an overview of the different approaches about Apache ECharts<sup>TM</sup> style customization. For example, how to config the color, size, shadow of the graphic elements and labels.</p> <blockquote><p>The term "style" may not follow the convention of data visualization, but we use it in this article because it is popular and easy to understand.</p></blockquote> <p>These approaches below will be introduced. The functionalities of them might be overlapped, but they are suitable for different scenarios.</p> <ul><li>Theme</li> <li>Color Palette</li> <li>Customize style explicitly (itemStyle, lineStyle, areaStyle, label, ...)</li> <li>Visual encoding (visualMap component)</li></ul> <h2 id="theme" tabindex="-1">Theme</h2> <p>Setting a theme is the simplest way to change the color style. For example, in <a href="https://echarts.apache.org/examples">Examples page</a>, we can switch to dark mode and see the result of a different theme.</p> <p>In our project, we can switch to dark theme like:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code><span class="token keyword">var</span> chart <span class="token operator">=</span> echarts<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span>dom<span class="token punctuation">,</span> <span class="token string">'dark'</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>Other themes are not included by default, and need to load them ourselves if we want to use them. Themes can be visited and downloaded in the <a href="https://echarts.apache.org/theme-builder.html">theme builder</a>. Theme can also be created or edited in it. The downloaded theme can be used as follows:</p> <p>If a theme is downloaded as a JSON file, we should register it by ourselves, for example:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code><span class="token comment">// Assume the theme name is "vintage".</span>
 <span class="token function">fetch</span><span class="token punctuation">(</span><span class="token string">'theme/vintage.json'</span><span class="token punctuation">)</span>
   <span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span><span class="token parameter">r</span> <span class="token operator">=></span> r<span class="token punctuation">.</span><span class="token function">json</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span>
   <span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span><span class="token parameter">theme</span> <span class="token operator">=></span> <span class="token punctuation">{</span>
     echarts<span class="token punctuation">.</span><span class="token function">registerTheme</span><span class="token punctuation">(</span><span class="token string">'vintage'</span><span class="token punctuation">,</span> theme<span class="token punctuation">)</span><span class="token punctuation">;</span>
     <span class="token keyword">var</span> chart <span class="token operator">=</span> echarts<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span>dom<span class="token punctuation">,</span> <span class="token string">'vintage'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
   <span class="token punctuation">}</span><span class="token punctuation">)</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>If a theme is downloaded as a JS file, it will auto register itself:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code><span class="token comment">// Import the `vintage.js` file in HTML, then:</span>
 <span class="token keyword">var</span> chart <span class="token operator">=</span> echarts<span class="token punctuation">.</span><span class="token function">init</span><span class="token punctuation">(</span>dom<span class="token punctuation">,</span> <span class="token string">'vintage'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
 <span class="token comment">// ...</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <h2 id="color-palette" tabindex="-1">Color Palette</h2> <p>Color palette can be given in option. They provide a group of colors, which will be auto picked by series and data. We can give a global palette, or exclusive pallette for certain series.</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code>option <span class="token operator">=</span> <span class="token punctuation">{</span>
   <span class="token comment">// Global palette:</span>
   <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token punctuation">[</span>
     <span class="token string">'#c23531'</span><span class="token punctuation">,</span>
     <span class="token string">'#2f4554'</span><span class="token punctuation">,</span>
     <span class="token string">'#61a0a8'</span><span class="token punctuation">,</span>
     <span class="token string">'#d48265'</span><span class="token punctuation">,</span>
     <span class="token string">'#91c7ae'</span><span class="token punctuation">,</span>
     <span class="token string">'#749f83'</span><span class="token punctuation">,</span>
     <span class="token string">'#ca8622'</span><span class="token punctuation">,</span>
     <span class="token string">'#bda29a'</span><span class="token punctuation">,</span>
     <span class="token string">'#6e7074'</span><span class="token punctuation">,</span>
     <span class="token string">'#546570'</span><span class="token punctuation">,</span>
     <span class="token string">'#c4ccd3'</span>
   <span class="token punctuation">]</span><span class="token punctuation">,</span>

   <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">[</span>
     <span class="token punctuation">{</span>
       <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'bar'</span><span class="token punctuation">,</span>
       <span class="token comment">// A palette only work for the series:</span>
       <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token punctuation">[</span>
         <span class="token string">'#dd6b66'</span><span class="token punctuation">,</span>
         <span class="token string">'#759aa0'</span><span class="token punctuation">,</span>
         <span class="token string">'#e69d87'</span><span class="token punctuation">,</span>
         <span class="token string">'#8dc1a9'</span><span class="token punctuation">,</span>
         <span class="token string">'#ea7e53'</span><span class="token punctuation">,</span>
         <span class="token string">'#eedd78'</span><span class="token punctuation">,</span>
         <span class="token string">'#73a373'</span><span class="token punctuation">,</span>
         <span class="token string">'#73b9bc'</span><span class="token punctuation">,</span>
         <span class="token string">'#7289ab'</span><span class="token punctuation">,</span>
         <span class="token string">'#91ca8c'</span><span class="token punctuation">,</span>
         <span class="token string">'#f49f42'</span>
       <span class="token punctuation">]</span>
       <span class="token comment">// ...</span>
     <span class="token punctuation">}</span><span class="token punctuation">,</span>
     <span class="token punctuation">{</span>
       <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'pie'</span><span class="token punctuation">,</span>
       <span class="token comment">// A palette only work for the series:</span>
       <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token punctuation">[</span>
         <span class="token string">'#37A2DA'</span><span class="token punctuation">,</span>
         <span class="token string">'#32C5E9'</span><span class="token punctuation">,</span>
         <span class="token string">'#67E0E3'</span><span class="token punctuation">,</span>
         <span class="token string">'#9FE6B8'</span><span class="token punctuation">,</span>
         <span class="token string">'#FFDB5C'</span><span class="token punctuation">,</span>
         <span class="token string">'#ff9f7f'</span><span class="token punctuation">,</span>
         <span class="token string">'#fb7293'</span><span class="token punctuation">,</span>
         <span class="token string">'#E062AE'</span><span class="token punctuation">,</span>
         <span class="token string">'#E690D1'</span><span class="token punctuation">,</span>
         <span class="token string">'#e7bcf3'</span><span class="token punctuation">,</span>
         <span class="token string">'#9d96f5'</span><span class="token punctuation">,</span>
         <span class="token string">'#8378EA'</span><span class="token punctuation">,</span>
         <span class="token string">'#96BFFF'</span>
       <span class="token punctuation">]</span>
       <span class="token comment">// ...</span>
     <span class="token punctuation">}</span>
   <span class="token punctuation">]</span>
 <span class="token punctuation">}</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <h2 id="customize-style-explicitly" tabindex="-1">Customize Style Explicitly</h2> <p>It is a common way to set style explicitly. Throughout ECharts <a href="https://echarts.apache.org/option.html#">option</a>, style related options can be set in various place, including <a href="https://echarts.apache.org/option.html#series.itemStyle">itemStyle</a>, <a href="https://echarts.apache.org/option.html#series-line.lineStyle">lineStyle</a>, <a href="https://echarts.apache.org/option.html#series-line.areaStyle">areaStyle</a>, <a href="https://echarts.apache.org/option.html#series.label">label</a>, etc.</p> <p>Generally speaking, all of the built-in components and series follow the naming convention like <code>itemStyle</code>, <code>lineStyle</code>, <code>areaStyle</code>, <code>label</code> etc, although they may occur in different place according to different series or components.</p> <p>In the following code we add shadow, gradient to bubble chart.</p> <div class="md-live layout-tb"><div class="md-live-editor"><div class="md-live-editor-container"><div class="prism-editor-wrapper"><div class="prism-editor__container"><textarea spellcheck="false" autocapitalize="off" autocomplete="off" autocorrect="off" data-gramm="false" placeholder="" data-testid="textarea" class="prism-editor__textarea">var data = [
   [
     [28604, 77, 17096869, 'Australia', 1990],
     [31163, 77.4, 27662440, 'Canada', 1990],
     [1516, 68, 1154605773, 'China', 1990],
     [13670, 74.7, 10582082, 'Cuba', 1990],
     [28599, 75, 4986705, 'Finland', 1990],
     [29476, 77.1, 56943299, 'France', 1990],
     [31476, 75.4, 78958237, 'Germany', 1990],
     [28666, 78.1, 254830, 'Iceland', 1990],
     [1777, 57.7, 870601776, 'India', 1990],
     [29550, 79.1, 122249285, 'Japan', 1990],
     [2076, 67.9, 20194354, 'North Korea', 1990],
     [12087, 72, 42972254, 'South Korea', 1990],
     [24021, 75.4, 3397534, 'New Zealand', 1990],
     [43296, 76.8, 4240375, 'Norway', 1990],
     [10088, 70.8, 38195258, 'Poland', 1990],
     [19349, 69.6, 147568552, 'Russia', 1990],
     [10670, 67.3, 53994605, 'Turkey', 1990],
     [26424, 75.7, 57110117, 'United Kingdom', 1990],
     [37062, 75.4, 252847810, 'United States', 1990]
   ],
   [
     [44056, 81.8, 23968973, 'Australia', 2015],
     [43294, 81.7, 35939927, 'Canada', 2015],
     [13334, 76.9, 1376048943, 'China', 2015],
     [21291, 78.5, 11389562, 'Cuba', 2015],
     [38923, 80.8, 5503457, 'Finland', 2015],
     [37599, 81.9, 64395345, 'France', 2015],
     [44053, 81.1, 80688545, 'Germany', 2015],
     [42182, 82.8, 329425, 'Iceland', 2015],
     [5903, 66.8, 1311050527, 'India', 2015],
     [36162, 83.5, 126573481, 'Japan', 2015],
     [1390, 71.4, 25155317, 'North Korea', 2015],
     [34644, 80.7, 50293439, 'South Korea', 2015],
     [34186, 80.6, 4528526, 'New Zealand', 2015],
     [64304, 81.6, 5210967, 'Norway', 2015],
     [24787, 77.3, 38611794, 'Poland', 2015],
     [23038, 73.13, 143456918, 'Russia', 2015],
     [19360, 76.5, 78665830, 'Turkey', 2015],
     [38225, 81.4, 64715810, 'United Kingdom', 2015],
     [53354, 79.1, 321773631, 'United States', 2015]
   ]
 ];

 option = {
   backgroundColor: {
     type: 'radial',
     x: 0.3,
     y: 0.3,
     r: 0.8,
     colorStops: [
       {
         offset: 0,
         color: '#f7f8fa'
       },
       {
         offset: 1,
         color: '#cdd0d5'
       }
     ]
   },
   grid: {
     left: 10,
     containLabel: true,
     bottom: 10,
     top: 10,
     right: 30
   },
   xAxis: {
     splitLine: {
       show: false
     }
   },
   yAxis: {
     splitLine: {
       show: false
     },
     scale: true
   },
   series: [
     {
       name: '1990',
       data: data[0],
       type: 'scatter',
       symbolSize: function(data) {
         return Math.sqrt(data[2]) / 5e2;
       },
       emphasis: {
         focus: 'series',
         label: {
           show: true,
           formatter: function(param) {
             return param.data[3];
           },
           position: 'top'
         }
       },
       itemStyle: {
         shadowBlur: 10,
         shadowColor: 'rgba(120, 36, 50, 0.5)',
         shadowOffsetY: 5,
         color: {
           type: 'radial',
           x: 0.4,
           y: 0.3,
           r: 1,
           colorStops: [
             {
               offset: 0,
               color: 'rgb(251, 118, 123)'
             },
             {
               offset: 1,
               color: 'rgb(204, 46, 72)'
             }
           ]
         }
       }
     },
     {
       name: '2015',
       data: data[1],
       type: 'scatter',
       symbolSize: function(data) {
         return Math.sqrt(data[2]) / 5e2;
       },
       emphasis: {
         focus: 'series',
         label: {
           show: true,
           formatter: function(param) {
             return param.data[3];
           },
           position: 'top'
         }
       },
       itemStyle: {
         shadowBlur: 10,
         shadowColor: 'rgba(25, 100, 150, 0.5)',
         shadowOffsetY: 5,
         color: {
           type: 'radial',
           x: 0.4,
           y: 0.3,
           r: 1,
           colorStops: [
             {
               offset: 0,
               color: 'rgb(129, 227, 238)'
             },
             {
               offset: 1,
               color: 'rgb(25, 183, 207)'
             }
           ]
         }
       }
     }
   ]
 };</textarea><pre data-testid="preview" class="prism-editor__editor"><span class="token keyword">var</span> data <span class="token operator">=</span> <span class="token punctuation">[</span>
   <span class="token punctuation">[</span>
     <span class="token punctuation">[</span><span class="token number">28604</span><span class="token punctuation">,</span> <span class="token number">77</span><span class="token punctuation">,</span> <span class="token number">17096869</span><span class="token punctuation">,</span> <span class="token string">'Australia'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">31163</span><span class="token punctuation">,</span> <span class="token number">77.4</span><span class="token punctuation">,</span> <span class="token number">27662440</span><span class="token punctuation">,</span> <span class="token string">'Canada'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">1516</span><span class="token punctuation">,</span> <span class="token number">68</span><span class="token punctuation">,</span> <span class="token number">1154605773</span><span class="token punctuation">,</span> <span class="token string">'China'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">13670</span><span class="token punctuation">,</span> <span class="token number">74.7</span><span class="token punctuation">,</span> <span class="token number">10582082</span><span class="token punctuation">,</span> <span class="token string">'Cuba'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">28599</span><span class="token punctuation">,</span> <span class="token number">75</span><span class="token punctuation">,</span> <span class="token number">4986705</span><span class="token punctuation">,</span> <span class="token string">'Finland'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">29476</span><span class="token punctuation">,</span> <span class="token number">77.1</span><span class="token punctuation">,</span> <span class="token number">56943299</span><span class="token punctuation">,</span> <span class="token string">'France'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">31476</span><span class="token punctuation">,</span> <span class="token number">75.4</span><span class="token punctuation">,</span> <span class="token number">78958237</span><span class="token punctuation">,</span> <span class="token string">'Germany'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">28666</span><span class="token punctuation">,</span> <span class="token number">78.1</span><span class="token punctuation">,</span> <span class="token number">254830</span><span class="token punctuation">,</span> <span class="token string">'Iceland'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">1777</span><span class="token punctuation">,</span> <span class="token number">57.7</span><span class="token punctuation">,</span> <span class="token number">870601776</span><span class="token punctuation">,</span> <span class="token string">'India'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">29550</span><span class="token punctuation">,</span> <span class="token number">79.1</span><span class="token punctuation">,</span> <span class="token number">122249285</span><span class="token punctuation">,</span> <span class="token string">'Japan'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
     <span class="token punctuation">[</span><span class="token number">2076</span><span class="token punctuation">,</span> <span class="token number">67.9</span><span class="token punctuation">,</span> <span class="token number">20194354</span><span class="token punctuation">,</span> <span class="token string">'North Korea'</span><span class="token punctuation">,</span> <span class="token number">1990</span><span class="token punctuation">]</span><span class="token punctuation">,</span>
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         <span class="token literal-property property">shadowColor</span><span class="token operator">:</span> <span class="token string">'rgba(25, 100, 150, 0.5)'</span><span class="token punctuation">,</span>
         <span class="token literal-property property">shadowOffsetY</span><span class="token operator">:</span> <span class="token number">5</span><span class="token punctuation">,</span>
         <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token punctuation">{</span>
           <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'radial'</span><span class="token punctuation">,</span>
           <span class="token literal-property property">x</span><span class="token operator">:</span> <span class="token number">0.4</span><span class="token punctuation">,</span>
           <span class="token literal-property property">y</span><span class="token operator">:</span> <span class="token number">0.3</span><span class="token punctuation">,</span>
           <span class="token literal-property property">r</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
           <span class="token literal-property property">colorStops</span><span class="token operator">:</span> <span class="token punctuation">[</span>
             <span class="token punctuation">{</span>
               <span class="token literal-property property">offset</span><span class="token operator">:</span> <span class="token number">0</span><span class="token punctuation">,</span>
               <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'rgb(129, 227, 238)'</span>
             <span class="token punctuation">}</span><span class="token punctuation">,</span>
             <span class="token punctuation">{</span>
               <span class="token literal-property property">offset</span><span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
               <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'rgb(25, 183, 207)'</span>
             <span class="token punctuation">}</span>
           <span class="token punctuation">]</span>
         <span class="token punctuation">}</span>
       <span class="token punctuation">}</span>
     <span class="token punctuation">}</span>
   <span class="token punctuation">]</span>
 <span class="token punctuation">}</span><span class="token punctuation">;</span><br></pre></div></div></div> <div class="md-live-tag">live</div> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <div class="md-live-preview"></div></div> <h2 id="style-of-emphasis-state" tabindex="-1">Style of Emphasis State</h2> <p>When mouse hovering a graphic elements, usually the emphasis style will be displayed. By default, the emphasis style is auto generated by the normal style. However they can be specified by <a href="https://echarts.apache.org/option.html#series-bar.emphasis">emphasis</a> property. The options in <a href="https://echarts.apache.org/option.html#series-bar.emphasis">emphasis</a> is the same as the ones for normal state, for example:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code>option <span class="token operator">=</span> <span class="token punctuation">{</span>
   <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">{</span>
     <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'scatter'</span><span class="token punctuation">,</span>

     <span class="token comment">// Styles for normal state.</span>
     <span class="token literal-property property">itemStyle</span><span class="token operator">:</span> <span class="token punctuation">{</span>
       <span class="token comment">// Color of the point.</span>
       <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'red'</span>
     <span class="token punctuation">}</span><span class="token punctuation">,</span>
     <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token punctuation">{</span>
       <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
       <span class="token comment">// Text of labels.</span>
       <span class="token literal-property property">formatter</span><span class="token operator">:</span> <span class="token string">'This is a normal label.'</span>
     <span class="token punctuation">}</span><span class="token punctuation">,</span>

     <span class="token comment">// Styles for emphasis state.</span>
     <span class="token literal-property property">emphasis</span><span class="token operator">:</span> <span class="token punctuation">{</span>
       <span class="token literal-property property">itemStyle</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token comment">// Color in emphasis state.</span>
         <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'blue'</span>
       <span class="token punctuation">}</span><span class="token punctuation">,</span>
       <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
         <span class="token comment">// Text in emphasis.</span>
         <span class="token literal-property property">formatter</span><span class="token operator">:</span> <span class="token string">'This is a emphasis label.'</span>
       <span class="token punctuation">}</span>
     <span class="token punctuation">}</span>
   <span class="token punctuation">}</span>
 <span class="token punctuation">}</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>Notice: Before ECharts4, the emphasis style should be written like this:</p> <div class="md-code-block"><div class="nuxt-content-highlight"><pre class="language-js line-numbers"><code>option <span class="token operator">=</span> <span class="token punctuation">{</span>
   <span class="token literal-property property">series</span><span class="token operator">:</span> <span class="token punctuation">{</span>
     <span class="token literal-property property">type</span><span class="token operator">:</span> <span class="token string">'scatter'</span><span class="token punctuation">,</span>

     <span class="token literal-property property">itemStyle</span><span class="token operator">:</span> <span class="token punctuation">{</span>
       <span class="token comment">// Styles for normal state.</span>
       <span class="token literal-property property">normal</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'red'</span>
       <span class="token punctuation">}</span><span class="token punctuation">,</span>
       <span class="token comment">// Styles for emphasis state.</span>
       <span class="token literal-property property">emphasis</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token literal-property property">color</span><span class="token operator">:</span> <span class="token string">'blue'</span>
       <span class="token punctuation">}</span>
     <span class="token punctuation">}</span><span class="token punctuation">,</span>

     <span class="token literal-property property">label</span><span class="token operator">:</span> <span class="token punctuation">{</span>
       <span class="token comment">// Styles for normal state.</span>
       <span class="token literal-property property">normal</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
         <span class="token literal-property property">formatter</span><span class="token operator">:</span> <span class="token string">'This is a normal label.'</span>
       <span class="token punctuation">}</span><span class="token punctuation">,</span>
       <span class="token comment">// Styles for emphasis state.</span>
       <span class="token literal-property property">emphasis</span><span class="token operator">:</span> <span class="token punctuation">{</span>
         <span class="token literal-property property">show</span><span class="token operator">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span>
         <span class="token literal-property property">formatter</span><span class="token operator">:</span> <span class="token string">'This is a emphasis label.'</span>
       <span class="token punctuation">}</span>
     <span class="token punctuation">}</span>
   <span class="token punctuation">}</span>
 <span class="token punctuation">}</span><span class="token punctuation">;</span></code></pre></div> <!----> <div class="clipboard" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-6 w-6" data-v-479657ca><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" data-v-479657ca></path></svg></svg></div></div> <p>The option format is still <strong>compatible</strong>, but not recommended. In fact, in most cases, users only set normal style, and use the default emphasis style. So since ECharts4, we support to write style without the "normal" term, which makes the option more simple and neat.</p> <h2 id="visual-encoding-by-visualmap-component" tabindex="-1">Visual Encoding by visualMap Component</h2> <p><a href="https://echarts.apache.org/option.html#visualMap">visualMap component</a> supports config the rule that mapping value to visual channel (color, size, ...). More details can be check in <a href="en/concepts/visual-map/">Visual Map of Data</a>.</p></article></div></div> <div class="post-contributors"><h3><span class="inline-block align-middle">Contributors</span> <a target="_blank" href="https://github.com/apache/echarts-handbook/tree/master/contents/en/concepts/style.md" title="Edit this Document" class="inline-block align-middle text-sm"><svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor" class="h-8 w-8 inline-block align-middle"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"></path></svg> <span class="inline-block align-middle">Edit this page on GitHub</span></a></h3> <div class="post-contributors-list"><a href="https://github.com/plainheart" target="_blank" class="post-contributor"><img alt="plainheart" src="https://avatars.githubusercontent.com/plainheart?size=60" loading="lazy"> <span>plainheart</span></a><a href="https://github.com/KrzysztofMadejski" target="_blank" class="post-contributor"><img alt="KrzysztofMadejski" src="https://avatars.githubusercontent.com/KrzysztofMadejski?size=60" loading="lazy"> <span>KrzysztofMadejski</span></a><a href="https://github.com/pissang" target="_blank" class="post-contributor"><img alt="pissang" src="https://avatars.githubusercontent.com/pissang?size=60" loading="lazy"> <span>pissang</span></a><a href="https://github.com/fuchunhui" target="_blank" class="post-contributor"><img alt="fuchunhui" src="https://avatars.githubusercontent.com/fuchunhui?size=60" loading="lazy"> <span>fuchunhui</span></a><a href="https://github.com/zachary-svoboda-accesso" target="_blank" class="post-contributor"><img alt="zachary-svoboda-accesso" src="https://avatars.githubusercontent.com/zachary-svoboda-accesso?size=60" loading="lazy"> <span>zachary-svoboda-accesso</span></a></div></div></div></div></div></div> <link rel="stylesheet" href="//fastly.jsdelivr.net/npm/highlight.js@9.12.0/styles/github-gist.min.css"></div></div></div></div><script>window.__NUXT__=function(g,i,e,t,I,C,A,l,a,o,s,d,r,n,c,h,w,y,p,b,m,M,N,B,z,u,L,Z,S,T,D,G,Y,O,J,W,f,x,v,X,K,j,k,H,F,E,R,V,U,Q,P,q,_,$,gg,ig,eg,tg){return{layout:"default",data:[{html:'<h1 id="overview-of-style-customization" tabindex="-1">Overview of Style Customization</h1>\n<p>This article provides an overview of the different approaches about Apache ECharts<sup>TM</sup> style customization. For example, how to config the color, size, shadow of the graphic elements and labels.</p>\n<blockquote>\n<p>The term &quot;style&quot; may not follow the convention of data visualization, but we use it in this article because it is popular and easy to understand.</p>\n</blockquote>\n<p>These approaches below will be introduced. The functionalities of them might be overlapped, but they are suitable for different scenarios.</p>\n<ul>\n<li>Theme</li>\n<li>Color Palette</li>\n<li>Customize style explicitly (itemStyle, lineStyle, areaStyle, label, ...)</li>\n<li>Visual encoding (visualMap component)</li>\n</ul>\n<h2 id="theme" tabindex="-1">Theme</h2>\n<p>Setting a theme is the simplest way to change the color style. For example, in <a href="https://echarts.apache.org/examples">Examples page</a>, we can switch to dark mode and see the result of a different theme.</p>\n<p>In our project, we can switch to dark theme like:</p>\n<md-code-block lang="js" code="\'dmFyIGNoYXJ0ID0gZWNoYXJ0cy5pbml0KGRvbSwgJ2RhcmsnKTs\'" line-highlights="\'\'" />\n<p>Other themes are not included by default, and need to load them ourselves if we want to use them. Themes can be visited and downloaded in the <a href="https://echarts.apache.org/theme-builder.html">theme builder</a>. Theme can also be created or edited in it. The downloaded theme can be used as follows:</p>\n<p>If a theme is downloaded as a JSON file, we should register it by ourselves, for example:</p>\n<md-code-block lang="js" code="\'Ly8gQXNzdW1lIHRoZSB0aGVtZSBuYW1lIGlzICJ2aW50YWdlIi4KZmV0Y2goJ3RoZW1lL3ZpbnRhZ2UuanNvbicpCiAgLnRoZW4ociA9PiByLmpzb24oKSkKICAudGhlbih0aGVtZSA9PiB7CiAgICBlY2hhcnRzLnJlZ2lzdGVyVGhlbWUoJ3ZpbnRhZ2UnLCB0aGVtZSk7CiAgICB2YXIgY2hhcnQgPSBlY2hhcnRzLmluaXQoZG9tLCAndmludGFnZScpOwogIH0p\'" line-highlights="\'\'" />\n<p>If a theme is downloaded as a JS file, it will auto register itself:</p>\n<md-code-block lang="js" code="\'Ly8gSW1wb3J0IHRoZSBgdmludGFnZS5qc2AgZmlsZSBpbiBIVE1MLCB0aGVuOgp2YXIgY2hhcnQgPSBlY2hhcnRzLmluaXQoZG9tLCAndmludGFnZScpOwovLyAuLi4\'" line-highlights="\'\'" />\n<h2 id="color-palette" tabindex="-1">Color Palette</h2>\n<p>Color palette can be given in option. They provide a group of colors, which will be auto picked by series and data. We can give a global palette, or exclusive pallette for certain series.</p>\n<md-code-block lang="js" code="\'b3B0aW9uID0gewogIC8vIEdsb2JhbCBwYWxldHRlOgogIGNvbG9yOiBbCiAgICAnI2MyMzUzMScsCiAgICAnIzJmNDU1NCcsCiAgICAnIzYxYTBhOCcsCiAgICAnI2Q0ODI2NScsCiAgICAnIzkxYzdhZScsCiAgICAnIzc0OWY4MycsCiAgICAnI2NhODYyMicsCiAgICAnI2JkYTI5YScsCiAgICAnIzZlNzA3NCcsCiAgICAnIzU0NjU3MCcsCiAgICAnI2M0Y2NkMycKICBdLAoKICBzZXJpZXM6IFsKICAgIHsKICAgICAgdHlwZTogJ2JhcicsCiAgICAgIC8vIEEgcGFsZXR0ZSBvbmx5IHdvcmsgZm9yIHRoZSBzZXJpZXM6CiAgICAgIGNvbG9yOiBbCiAgICAgICAgJyNkZDZiNjYnLAogICAgICAgICcjNzU5YWEwJywKICAgICAgICAnI2U2OWQ4NycsCiAgICAgICAgJyM4ZGMxYTknLAogICAgICAgICcjZWE3ZTUzJywKICAgICAgICAnI2VlZGQ3OCcsCiAgICAgICAgJyM3M2EzNzMnLAogICAgICAgICcjNzNiOWJjJywKICAgICAgICAnIzcyODlhYicsCiAgICAgICAgJyM5MWNhOGMnLAogICAgICAgICcjZjQ5ZjQyJwogICAgICBdCiAgICAgIC8vIC4uLgogICAgfSwKICAgIHsKICAgICAgdHlwZTogJ3BpZScsCiAgICAgIC8vIEEgcGFsZXR0ZSBvbmx5IHdvcmsgZm9yIHRoZSBzZXJpZXM6CiAgICAgIGNvbG9yOiBbCiAgICAgICAgJyMzN0EyREEnLAogICAgICAgICcjMzJDNUU5JywKICAgICAgICAnIzY3RTBFMycsCiAgICAgICAgJyM5RkU2QjgnLAogICAgICAgICcjRkZEQjVDJywKICAgICAgICAnI2ZmOWY3ZicsCiAgICAgICAgJyNmYjcyOTMnLAogICAgICAgICcjRTA2MkFFJywKICAgICAgICAnI0U2OTBEMScsCiAgICAgICAgJyNlN2JjZjMnLAogICAgICAgICcjOWQ5NmY1JywKICAgICAgICAnIzgzNzhFQScsCiAgICAgICAgJyM5NkJGRkYnCiAgICAgIF0KICAgICAgLy8gLi4uCiAgICB9CiAgXQp9Ow\'" line-highlights="\'\'" />\n<h2 id="customize-style-explicitly" tabindex="-1">Customize Style Explicitly</h2>\n<p>It is a common way to set style explicitly. Throughout ECharts <a href="https://echarts.apache.org/option.html#">option</a>, style related options can be set in various place, including <a href="https://echarts.apache.org/option.html#series.itemStyle">itemStyle</a>, <a href="https://echarts.apache.org/option.html#series-line.lineStyle">lineStyle</a>, <a href="https://echarts.apache.org/option.html#series-line.areaStyle">areaStyle</a>, <a href="https://echarts.apache.org/option.html#series.label">label</a>, etc.</p>\n<p>Generally speaking, all of the built-in components and series follow the naming convention like <code>itemStyle</code>, <code>lineStyle</code>, <code>areaStyle</code>, <code>label</code> etc, although they may occur in different place according to different series or components.</p>\n<p>In the following code we add shadow, gradient to bubble chart.</p>\n<md-live lang="js" code="\'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v-bind="{}" />\n<h2 id="style-of-emphasis-state" tabindex="-1">Style of Emphasis State</h2>\n<p>When mouse hovering a graphic elements, usually the emphasis style will be displayed. By default, the emphasis style is auto generated by the normal style. However they can be specified by <a href="https://echarts.apache.org/option.html#series-bar.emphasis">emphasis</a> property. The options in <a href="https://echarts.apache.org/option.html#series-bar.emphasis">emphasis</a> is the same as the ones for normal state, for example:</p>\n<md-code-block lang="js" code="\'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\'" line-highlights="\'\'" />\n<p>Notice: Before ECharts4, the emphasis style should be written like this:</p>\n<md-code-block lang="js" code="\'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\'" line-highlights="\'\'" />\n<p>The option format is still <strong>compatible</strong>, but not recommended. In fact, in most cases, users only set normal style, and use the default emphasis style. So since ECharts4, we support to write style without the &quot;normal&quot; term, which makes the option more simple and neat.</p>\n<h2 id="visual-encoding-by-visualmap-component" tabindex="-1">Visual Encoding by visualMap Component</h2>\n<p><a href="https://echarts.apache.org/option.html#visualMap">visualMap component</a> supports config the rule that mapping value to visual channel (color, size, ...). More details can be check in <a href="en/concepts/visual-map/">Visual Map of Data</a>.</p>\n',postPath:"en/concepts/style",title:"Style - Concepts"}],fetch:{},error:null,state:{filled:!1,docVersion:"",ghVersion:"",visibleAffix:!1,homepage:{},adBlocked:!1,focusMode:!1,posts:{zh:[{title:"快速上手",dir:t},{title:"入门篇",dir:I,children:[{title:"获取 ECharts",dir:C},{title:"在项目中引入 ECharts",dir:A},{title:"资源列表",dir:l,draft:g},{title:"寻求帮助",dir:a},{title:"版本特性",dir:o,children:[{title:"ECharts 5 特性介绍",dir:s},{title:"v4 升级 v5 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