xmc/modular/titlebars/windows_classic.css

.theme-dark {
  --wc-frame: inset -1px -1px 0 0 var(--tertiary),
    inset 1px 1px 0 0 var(--primary), inset -2px -2px 0 0 var(--secondary),
    inset 2px 2px 0 0 var(--wc-bright, var(--highlight));

  --wc-outer-edge: inset -1px -1px 0 0 var(--tertiary),
    inset 1px 1px 0 0 var(--wc-bright, var(--highlight)),
    inset -2px -2px 0 0 var(--secondary), inset 2px 2px 0 0 var(--primary) !important;
}
.theme-light {
  --wc-frame: inset -1px -1px 0 0 var(--wc-bright, var(--highlight)),
    inset 1px 1px 0 0 var(--primary), inset -2px -2px 0 0 var(--tertiary),
    inset 2px 2px 0 0 var(--secondary);

  --wc-outer-edge: inset -1px -1px 0 0 var(--wc-bright, var(--highlight)),
    inset 1px 1px 0 0 var(--secondary), inset -2px -2px 0 0 var(--primary),
    inset 2px 2px 0 0 var(--tertiary);
}

.platform-win #app-mount {
  padding: 2px;
  box-shadow: var(--wc-frame);
  width: calc(100% - 6px);
  height: calc(100% - 6px);
  border: 1px solid var(--titlebar-border-inactive, var(--secondary));
}
.platform-win.app-focused #app-mount {
  border-color: var(--titlebar-border-active, var(--primary)) !important;
}

[class^="typeWindows-"] {
  height: 18px !important;
  margin-top: 0;
  background: var(--titlebar-inactive, var(--secondary));
  border-bottom: 1px solid var(--titlebar-border-inactive, var(--secondary));
}
.app-focused [class^="typeWindows-"] {
  background: var(
    --titlebar-active,
    var(--titlebar-color, var(--accent))
  ) !important;
  border-color: var(--titlebar-border-active, var(--primary)) !important;
}

[class^="winButtonClose-"] > svg,
[class^="winButtonMinMax-"] > svg,
[class^="wordmarkWindows-"] > svg {
  display: none;
}

[class^="wordmarkWindows-"] {
  width: 16px !important;
  height: 16px !important;
  top: 1px !important;
  left: 2px !important;
  padding: 0 !important;
  background-image: var(--titlebar-icon);
  background-repeat: no-repeat;
}
[class^="wordmarkWindows-"]::after {
  font-family: var(--_font-titlebars) !important;
  font-size: 12px !important;
  color: var(--wc-bright, var(--highlight)) !important;
  font-weight: bold !important;
  content: "Discord";
  position: absolute;
  top: 2px;
  left: 18px;
  height: 17px;
  opacity: 1;
}
.app-focused [class^="wordmarkWindows-"]::after {
  color: var(--text) !important;
}

[class*="winButton-"] {
  top: 2px;
  width: 12px !important;
  height: 10px !important;
  padding: 2px;
  background: var(--primary) !important;
  box-shadow: var(--wc-outer-edge);
}

[class^="winButtonClose-"] {
  right: 2px;
}
[class^="winButtonMinMax-"]:nth-child(3),
[class^="winButtonMinMax-"]:nth-child(4) {
  right: 4px;
}

[class*="winButton-"]::before {
  width: 12px !important;
  height: 10px !important;
  background-color: var(--text);
  content: "";
}
[class^="winButtonClose-"]::before {
  -webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAwSURBVChTY6AE/IdidIBLHAzQJfEqhgGYIqIUwwBZionShK4IryZckng1URswMAAAIEcZ541Sy3oAAAAASUVORK5CYIIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
  mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAwSURBVChTY6AE/IdidIBLHAzQJfEqhgGYIqIUwwBZionShK4IryZckng1URswMAAAIEcZ541Sy3oAAAAASUVORK5CYIIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
}
[class^="winButtonMinMax-"]:nth-child(3)::before {
  -webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAjSURBVChTY4CC/0RgFIBNATpGARgCaGBUAwiABAhhcgADAwD+Vybas8l0mAAAAABJRU5ErkJgggAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
  mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAjSURBVChTY4CC/0RgFIBNATpGARgCaGBUAwiABAhhcgADAwD+Vybas8l0mAAAAABJRU5ErkJgggAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
}
[class^="winButtonMinMax-"]:nth-child(4)::before {
  -webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAZSURBVChTYxgFtAb/cWCcAJtiEKYEMDAAALNwC/VcmzodAAAAAElFTkSuQmCCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
  mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAZSURBVChTYxgFtAb/cWCcAJtiEKYEMDAAALNwC/VcmzodAAAAAElFTkSuQmCCAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
}

[class*="recentMentionsPopout-"],
[class^="messagesPopoutWrap-"],
[class^="browser-"] {
  border-radius: 0;
  padding: 2px;
  box-shadow: var(--wc-frame);
  border: 1px solid var(--titlebar-border-active, var(--primary));
}

[class*="recentMentionsPopout-"] > [class^="header-"] {
  padding: 0 4px;
  font-family: var(--_font-titlebars) !important;
  font-size: 12px !important;
  color: var(--text) !important;
  font-weight: bold !important;
  height: 18px !important;
  min-height: 18px !important;
  border-bottom: 1px solid var(--titlebar-border-inactive, var(--secondary));
  background: var(
    --titlebar-active,
    var(--titlebar-color, var(--accent))
  ) !important;
}
[class*="recentMentionsPopout-"]
  > [class^="header-"]
  > [class^="controls-"]
  > [class^="button-"] {
  padding: 0;
  border-radius: 0;
  width: 16px;
  height: 16px;
  min-width: 16px;
  min-height: 16px;
  background-color: transparent;
}
[class*="recentMentionsPopout-"] > [class^="header-"] [class^="tab-"] {
  margin-top: 0 !important;
  padding: 0px 2px;
  height: 16px;
  border-radius: 0;
  font-size: 12px;
}

[class^="messagesPopoutWrap-"] > [class^="header-"] {
  padding: 0;
}
[class^="messagesPopoutWrap-"] > [class^="header-"] > h1 {
  padding: 0 4px;
  font-family: var(--_font-titlebars) !important;
  font-size: 12px !important;
  color: var(--text) !important;
  font-weight: bold !important;
  height: 18px !important;
  border-bottom: 1px solid var(--titlebar-border-inactive, var(--secondary));
  background: var(
    --titlebar-active,
    var(--titlebar-color, var(--accent))
  ) !important;
}

[class^="browser-"] > [class^="header-"] {
  padding: 0 4px;
  font-family: var(--_font-titlebars) !important;
  font-size: 12px !important;
  color: var(--text) !important;
  font-weight: bold !important;
  height: 18px !important;
  min-height: 18px !important;
  border-bottom: 1px solid var(--titlebar-border-inactive, var(--secondary));
  background: var(
    --titlebar-active,
    var(--titlebar-color, var(--accent))
  ) !important;
}
[class^="browser-"] > [class^="header-"] > h1 {
  font-family: var(--_font-titlebars) !important;
  font-size: 12px !important;
  color: var(--text) !important;
  font-weight: bold !important;
}
[class^="browser-"] > [class^="header-"] > [class^="threadIcon-"] {
  width: 16px;
  height: 16px;
}
[class^="browser-"] > [class^="header-"] > [class^="threadIcon-"] {
  margin-right: 2px;
}
[class^="browser-"] > [class^="header-"] > h1,
[class^="browser-"] > [class^="header-"] > [class^="divider-"],
[class^="browser-"] > [class^="header-"] > [class^="searchBox-"] {
  margin-right: 0;
}

[class^="browser-"] > [class^="header-"] > [class^="divider-"] {
  flex-grow: 1;
  background-color: transparent;
}
[class^="browser-"] > [class^="header-"] > [class^="closeIcon-"] > svg {
  display: none;
}
[class^="browser-"] > [class^="header-"] > [class^="closeIcon-"] {
  width: 12px !important;
  min-width: 12px !important;
  height: 10px !important;
  min-height: 10px !important;
  padding: 2px;
  top: 0px;
  right: -2px;
  position: relative;
  background: var(--primary) !important;
  box-shadow: var(--wc-outer-edge);
}
[class^="browser-"] > [class^="header-"] > [class^="closeIcon-"]::before {
  width: 12px !important;
  height: 10px !important;
  background-color: var(--text);
  content: "";
  position: absolute;
  -webkit-mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAwSURBVChTY6AE/IdidIBLHAzQJfEqhgGYIqIUwwBZionShK4IryZckng1URswMAAAIEcZ541Sy3oAAAAASUVORK5CYIIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
  mask-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAAwSURBVChTY6AE/IdidIBLHAzQJfEqhgGYIqIUwwBZionShK4IryZckng1URswMAAAIEcZ541Sy3oAAAAASUVORK5CYIIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==");
}