themes/rainbowstone/data/RainbowStoneThemeData.xml

<?xml version="1.0" encoding="UTF-8"?>
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<entity-engine-xml>
    <VisualTheme visualThemeId="RAINBOWSTONE_SAPHIR" visualThemeSetId="BACKOFFICE" description="Rainbow Stone - Sapphire"/>
    <VisualTheme visualThemeId="RAINBOWSTONE_RUBY" visualThemeSetId="BACKOFFICE" description="Rainbow Stone - Ruby"/>
    <VisualTheme visualThemeId="RAINBOWSTONE_EMERALD" visualThemeSetId="BACKOFFICE" description="Rainbow Stone - Emerald"/>
    <VisualTheme visualThemeId="RAINBOWSTONE_AMBER" visualThemeSetId="BACKOFFICE" description="Rainbow Stone - Amber"/>
    <delete>
    <!-- These files are not set in Theme.xml, these are including using layoutSettings.VT_STYLESHEET_LESS -->
    <VisualThemeResource visualThemeId="RAINBOWSTONE_SAPHIR" resourceTypeEnumId="VT_STYLESHEET_LESS" resourceValue="/rainbowstone/rainbowstone-Sapphire.less" sequenceId="01"/>
    <VisualThemeResource visualThemeId="RAINBOWSTONE_RUBY" resourceTypeEnumId="VT_STYLESHEET_LESS" resourceValue="/rainbowstone/rainbowstone-ruby.less" sequenceId="01"/>
    <VisualThemeResource visualThemeId="RAINBOWSTONE_EMERALD" resourceTypeEnumId="VT_STYLESHEET_LESS" resourceValue="/rainbowstone/rainbowstone-emerald.less" sequenceId="01"/>
    <VisualThemeResource visualThemeId="RAINBOWSTONE_AMBER" resourceTypeEnumId="VT_STYLESHEET_LESS" resourceValue="/rainbowstone/rainbowstone-amber.less" sequenceId="01"/>
    </delete>
</entity-engine-xml>