dots/usr/share/themes/Dracula/gtk-4.0/apps/_unity.scss

/********
* Unity *
*********/

$unity_color: #31363D; /* Unity window border color */
$unity_text_color: #fefefe; /* Unity window text color */
$backdrop_unity_text_color: darken($unity_text_color,10%); /* Backdrop Unity window text color */
$unity_panel_color: darken($unity_color, 10%); /* Unity panel color #454D50 */

UnityDecoration {

  background-color: $unity_color;
  color: $unity_text_color;

  .top {
    padding: 0 5px 0 5px;
    border-radius: 4px 4px 0px 0px;
    box-shadow: none;
    border: 1px solid $unity_color;
    border-bottom-width: 0;
    background-color: $unity_color;
    color: $unity_text_color;
    border-top: 1px solid rgba(255,255,255,0.1);

    &:backdrop {
      border-bottom-width: 0;
      color: $backdrop_unity_text_color;
      border-top: 1px solid rgba(255,255,255,0.1);
    }

    .menuitem {
      color: $unity_text_color;

      &:backdrop {
        color: $backdrop_unity_text_color;
      }
    }
  }
}


UnityDecoration.left,
UnityDecoration.right {
  background-repeat: repeat-x;
  background-color: darken($unity_color, 0.6);
  background-size: 1px 120px;
  background-clip: border-box;
  background-image: linear-gradient(to bottom,
                                    $unity_color,
                                    darken($unity_color, 0.6)
                                    );
}

UnityDecoration.bottom {
  background-size: 1px;
  background-repeat: repeat-x;
  background-color: darken($unity_color, 0.6);
}

UnityDecoration.left:backdrop,
UnityDecoration.right:backdrop,
UnityDecoration.bottom:backdrop {
  background-size: 1px;
  background-repeat: repeat-x;
}


/**************
* Unity Panel *
***************/

UnityPanelWidget,
.unity-panel {
background-color: $unity_panel_color;
color: $unity_text_color;
}


UnityPanelWidget:backdrop,
.unity-panel:backdrop {
  color: $backdrop_unity_text_color;
}

.unity-panel.menuitem,
.unity-panel .menuitem {
  border-width: 0 1px;
  color: $unity_text_color;
}

.unity-panel.menubar,
.unity-panel .menubar {
  color: $unity_text_color;
}

.unity-panel.menu.menubar,
.unity-panel .menu .menubar {
  background-color: $unity_panel_color;
  color: $unity_text_color;
}

.unity-panel.menubar:backdrop,
.unity-panel .menubar *:backdrop {
  color: $backdrop_fg_color;
}

.unity-panel.menubar.menuitem,
.unity-panel.menubar .menuitem {
  padding: 3px 5px;
  border-width: 1px;
  border-style: solid;
  border: none;
  background: none;
  color: $unity_text_color;
  box-shadow: none;
}

.unity-panel.menubar.menuitem:hover,
.unity-panel.menubar .menuitem:hover {
  border-radius: 0;
  background-color: darken($unity_color, 1.05);
  color: $unity_text_color;
  box-shadow: none;
}

.unity-panel.menubar .menuitem *:hover {
  color: white;
  box-shadow: none;
}

.unity-panel.menubar .menuitem.separator,
.unity-panel.menubar.menuitem.separator {
  border: none;
  color: $borders_color;
}

/* Force Quit */
SheetStyleDialog.unity-force-quit {
   background-color: $base_color;
}


@keyframes playbackmenuitem_spinner {
  to { -gtk-icon-transform: rotate(1turn); }
}

.menu IdoPlaybackMenuItem.menuitem:active {
  -gtk-icon-source: -gtk-icontheme("process-working-symbolic");
  animation: playbackmenuitem_spinner 1s infinite linear;
  color: $selected_bg_color;
}