gecko-dev/devtools/client/themes/changes.css

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/* CSS Variables specific to the Changes panel that aren't defined by the themes */
:root {
  --diff-add-background-color: #f1feec;
  --diff-add-text-color: #54983f;
  --diff-remove-background-color: #fbf2f5;
  --diff-remove-text-color: #bf7173;
  --diff-source-background: var(--theme-toolbar-background);
  --diff-level: 0;
  --diff-level-offset: 10px;
  /*
    Minimum padding so content on the first level (zero) isn't touching the edge. Added
    and removed lines will re-declare this to add extra padding to clear the +/- icons.
  */
  --diff-level-min-offset: 5px;
}

:root.theme-dark {
  --diff-add-background-color: rgba(18, 188, 0, 0.15);
  --diff-add-text-color: #12BC00;
  --diff-remove-background-color: rgba(255, 0, 57, 0.15);
  --diff-remove-text-color: #FF0039;
  --diff-source-background: #222225;
}

:root[dir="rtl"] {
  /* Increase minimum offset on right-to-left layout to clear the floating scrollbar. */
  --diff-level-min-offset: 15px;
}

:root[dir="rtl"] #sidebar-panel-changes .source {
  /* Enforce left-to-right code rendering on right-to-left layout. */
  direction: ltr;
}

#sidebar-panel-changes {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background: var(--theme-sidebar-background);
}

#sidebar-panel-changes .href {
  display: flex;
  align-items: center;
  color: var(--theme-toolbar-color);
  background: var(--diff-source-background);
  border-top: 1px solid var(--theme-splitter-color);
  border-bottom: 1px solid var(--theme-splitter-color);
  padding: 4px;
  padding-inline-start: var(--diff-level-min-offset);
  font-size: 12px;
}

#sidebar-panel-changes .source:first-child .href {
  border-top: unset;
}

#sidebar-panel-changes .href span {
  /* Allows trimming of flex item with overflow ellipsis within the flex container */
  min-width: 0;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

#sidebar-panel-changes .level {
  padding-top: 3px;
  padding-right: 5px;
  padding-bottom: 3px;
  padding-left: calc(var(--diff-level-min-offset) +
                     var(--diff-level-offset) * var(--diff-level));
}

#sidebar-panel-changes .changes__toolbar {
  background: var(--theme-sidebar-background);
  border-bottom: 1px solid var(--theme-splitter-color);
  padding: 2px 5px;
  position: sticky;
  top: 0;
  z-index: 1;
}

/* Remove the top border of the first source to avoid double border from sticky toolbar */
#sidebar-panel-changes .changes__toolbar + .source .href {
  border-top: none;
}

.changes__copy-all-changes-button {
  -moz-context-properties: fill;
  /* Use the Firefox copy icon (16px) instead of the smaller DevTools one (12px) */
  background: url(chrome://browser/skin/edit-copy.svg) no-repeat;
  background-position: 4px 3px;
  background-size: 16px;
  border: none;
  border-radius: 3px;
  color: var(--theme-body-color);
  fill: currentColor;
  padding-block: 4px;
  padding-inline: 25px 5px;
}

.changes__copy-all-changes-button:dir(rtl) {
  background-position-x: right 4px;
}

.changes__copy-all-changes-button:hover,
.changes__copy-all-changes-button:focus {
  background-color: var(--theme-button-background);
}

.changes__copy-all-changes-button:active {
  background-color: var(--theme-button-active-background);
}

/* Hide the Copy Rule button by default. */
.changes__copy-rule-button {
  /**
   * The rgba() format of the background colors makes the button see-through and it looks
   * bad when stacked on top of long selectors.
   *
   * To solve this and not change the color format which is inherited from the Photon
   * color guide in `client/themes/variables.css`, we use a blending trick to overlay the
   * rgba() color value onto a solid color used for the panel background (achieved with
   * a linear gradient with no transition). This keeps the rgba() color, but prevents the
   * see-through effect.
   */
  background-blend-mode: overlay;
  background-color: var(--theme-button-background);
  background-image:
    linear-gradient(var(--theme-sidebar-background), var(--theme-sidebar-background));
  border-radius: 8px;
  border: none;
  color: var(--theme-body-color);
  display: none;
  padding: 1px 7px;
  position: absolute;
  right: 5px;
  top: 2px;
}

.changes__copy-rule-button:active {
  background-color: var(--theme-button-active-background);
}

.changes__rule {
  position: relative;
}

.changes__selector {
  word-wrap: break-word;
}

/* Show the Copy Rule button when hovering over the rule's selector elements */
.changes__selector:hover + .changes__copy-rule-button,
.changes__selector:hover + .changes__selector + .changes__copy-rule-button,
.changes__copy-rule-button:hover {
  display: block;
}

.changes__declaration {
  overflow-wrap: break-word;
}

.changes__declaration-name {
  margin-left: 10px;
}

.diff-add,
.diff-remove {
  --diff-level-min-offset: 15px;
  position: relative;
}

.diff-marker {
  position: absolute;
  left: 5px;
}

.diff-add {
  background-color: var(--diff-add-background-color);
}

.diff-add .diff-marker {
  color: var(--diff-add-text-color);
}

.diff-remove {
  background-color: var(--diff-remove-background-color);
}

.diff-remove .diff-marker{
  color: var(--diff-remove-text-color);
}

#sidebar-panel-changes .devtools-sidepanel-no-result :not(:first-child) {
  font-style: normal;
}