ui/src/main/sass/components/_diff.scss

.task-diff {
  font-family: 'Courier', sans-serif;
  font-size: 12px;
  border: 1px solid $grid_highlight_color;

  .diff-picker {
    font-family: $font_stack;
    background-color: $grid_color;
    border-bottom: 1px solid $grid_highlight_color;
    text-transform: uppercase;
    padding: 15px 20px 5px 20px;
    color: #555;
    font-size: 14px;
    font-weight: 700;

    div {
      font-weight: 700;
      margin: 0px 10px;
    }
  }

  .diff-view {
    overflow: auto;

    span {
      display: block;
      padding: 2px 10px;
      width: 100%;
      background-color: $content_box_color;
    }

    span.same {
      background-color: rgba(0, 0, 0, 0.01);
    }

    span.removed {
      background-color: #ffd7dc;
    }

    span.added {
      background-color: #c8f7d5;
    }
  }
}