rustdesk/src/ui/common.css

html {
    var(accent): #0071ff;
    var(button): #2C8CFF;
    var(gray-bg): #eee;
    var(bg): white;
    var(border): #ccc;
    var(hover-border): #999;
    var(text): #222;
    var(placeholder): #aaa;
    var(lighter-text): #888;
    var(light-text): #666;
    var(menu-hover): #D7E4F2;
    var(dark-red): #A72145;
    var(dark-yellow): #FBC732;
    var(dark-blue): #2E2459;
    var(green-blue): #197260;
    var(gray-blue): #2B3439;
    var(blue-green): #4299bf;
    var(light-green): #D4EAB7;
    var(dark-green): #5CB85C;
    var(blood-red): #F82600;
}

html.darktheme {
    var(bg): #252525;
    var(gray-bg): #141414;
    var(menu-hover): #2D3033;
    var(border): #555;

    var(text): white;
    var(light-text): #999;
    var(lighter-text): #777;
    var(placeholder): #555;
}

body {
    margin: 0;
    color: color(text);
}

button.button {
    height: 2em;
    border-radius: 0.5em;
    background: color(button);
    color: color(bg);
    border-color: color(button);
    min-width: 40px;
}

button[type=checkbox], button[type=checkbox]:active {
    background: none;
    border: none;
    color: unset;
    height: 1.4em;
}

button.outline {
    border: color(border) solid 1px;
    background: transparent; 
    color: color(text);
}

button.button:active, button.active {
    background: color(accent);
    color: color(bg);
    border-color: color(accent);
}

button.button:hover, button.outline:hover {
  border-color: color(hover-border);
}

input[type=text], input[type=password], input[type=number] {
    width: *;
    font-size: 1.5em;
    border-color: color(border);
    border-radius: 0;
    color: color(text);
    padding-left: 0.5em;
    background: color(bg);
}

input:empty {
    color: color(placeholder);
}

input.outline-focus:focus {
    outline: color(button) solid 3px;
}

textarea {
    background: color(bg);
    color: color(text);
}

textarea:empty {
    color: color(placeholder);
}

@set my-scrollbar
{
  .prev { display:none; }
  .next { display:none; }
  .base, .next-page, .prev-page { background: white;}
  .slider { background: #bbb; border: white solid 4px; }
  .base:disabled { background: transparent; }
  .slider:hover  { background: grey; }
  .slider:active { background: grey; }
  .base { size: 16px; } 
  .corner { background: white; }
}

@mixin ELLIPSIS {
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow-x: hidden;
}

.ellipsis {
  @ELLIPSIS;
}

div.password svg:not(.checkmark) {
    padding-left: 1em;
    size: 16px;
    color: #ddd;
    background: none;
    padding-top: 4px!important;
}

div.password input {
    font-family: Consolas, Menlo, Monaco, 'Courier New';
    font-size: 1.2em;
}

svg {
    background: none;
}

header {
  border-bottom: color(border) solid 1px;
  height: 22px;
  flow: horizontal;
  overflow-x: hidden;
  position: relative;
}

@media platform == "OSX" {
    header {
      background: linear-gradient(top,#E4E4E4,#D1D1D1);
    }
}

header div.window-icon {
  size: 22px;
}

@media platform != "OSX" {
header {
  background: white;
  height: 30px;
}

header div.window-icon {
  size: 30px;
}
}

header div.window-icon icon {
  display: block;
  margin: *;
  size: 16px;
  background-size: cover;
  background-repeat: no-repeat;
}

header caption {
  size: *;
} 

@media platform != "OSX" {
  button.window {
    top: 0;
    padding: 0 10px;
    width: 22px;
    position: absolute;
    color: black;
    border: none;
    background: none;
    border-radius: 0;
  }
  button.window div {
    size: 10px;
    margin: *;
    background-size: cover;
    background-repeat: no-repeat;
  }
  button.window:hover {
    background: color(gray-bg);
  }
  button.window#minimize {
    right: 84px;
  }
  button.window#maximize {
    right: 42px;
  }
  button.window#close {
    right: 0px;
  }
  button.window#minimize div {
    height: 3px;
    border-bottom: black solid 1px;
    width: 12px;
  }
  button.window#maximize div {
    border: black solid 1px;
  }
  button.window#close:hover {
    background: #F82600;
  }
  button.window#close:hover div {
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMBAMAAACkW0HUAAAAD1BMVEUAAAD///////////////+PQt5oAAAABXRSTlMAO+hBqp3RzLsAAAAuSURBVAjXY3BkAAIRBiEDBgZGZRACMkEYxAJyQRwgV5EBSsEEoUqgGqDaoYYBALKmBEEnAGy8AAAAAElFTkSuQmCC');
  }
  button.window#close div {
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMBAMAAACkW0HUAAAAD1BMVEUAAAAAAAAAAAAAAAAAAABPDueNAAAABXRSTlMAO+hBqp3RzLsAAAAuSURBVAjXY3BkAAIRBiEDBgZGZRACMkEYxAJyQRwgV5EBSsEEoUqgGqDaoYYBALKmBEEnAGy8AAAAAElFTkSuQmCC');
    size: 12px;
  }
  button.window#maximize.restore div {
    border: none;
    size: 12px;
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMAQMAAABsu86kAAAABlBMVEUAAAAAAAClZ7nPAAAAAXRSTlMAQObYZgAAAB1JREFUCNdjsP/AoCDA8P8CQ0MABipgaHBg+H8AAMfSC36WAZteAAAAAElFTkSuQmCC');
}
}

div.chatbox {
  size: *;
}

div.chatbox div.send svg {
  size: 16px;
}

div.chatbox div.send span:active {
  opacity: 0.5;
}

div.chatbox div.send span {
  display: inline-block;
  padding: 6px;
}

div.chatbox .msgs {
  border: none;
  size: *;
  border-bottom: color(border) 1px solid;
  overflow-x: hidden;
  overflow-y: scroll-indicator;
  border-spacing: 1em;
  padding: 1em;
}

div.chatbox div.send {
  flow: horizontal;
  height: 30px;
  padding: 5px;
}

div.chatbox div.send input {
  height: 20px !important;
}

div.chatbox div.name {
  color: color(dark-green);
}

div.chatbox div.right-side div {
  text-align: right;
}

div.chatbox div.text {
    margin-top: 0.5em;
}

@media platform != "OSX" {
header .window-toolbar {
  width: max-content;
  background: transparent;
  position: absolute;
  bottom: 4px;
  height: 24px;
}
}

header svg, menu svg {
  size: 14px;
}

header span, menu span {
  padding: 4px 8px;
  margin: * 0.5em;
  color: color(light-text);
}

progress {
    display: inline-block;
    aspect: Progress;
    border: none;
    margin-right: 1em;
    height: 0.25em;
    background: transparent;
}

menu {
  background: color(bg);
}

menu div.separator {
  height: 1px;
  width: *;
  margin: 5px 0;
  background: color(gray-bg);
  border: none;
}

menu li {
  color: color(text);
  position: relative;
}

menu li span {
  display: none;
}

menu li.selected span:nth-child(1) {
  display: inline-block;
  position: absolute;
  left: -10px;
  top: 2px;
}

.link {
  cursor: pointer;
  text-decoration: underline;
}

.link:active {
  opacity: 0.5;
}

menu li:hover {
  background: color(menu-hover);
  color: color(text);
}

menu li.line-through, menu li.line-through :hover {
  text-decoration-line: line-through;
  color: red;
}

#tags {
    border: color(border) 1px solid;
    size: *;
    padding: 0.5em;
    overflow-y: scroll-indicator;
    border-spacing: 0.5em;
    flow: horizontal-flow;
}

#tags span {
    display: inline-block;
    border: color(border) 1px solid;
    border-radius: 6px;
    padding: 3px 0.5em;
    word-wrap: normal;
}

#tags span.active {
    background: color(button);
    border-color: color(button);
    color: white;
}

#tags span:hover {
    border-color: color(hover-border);
}

div#msgbox .msgbox-icon svg {
  size: 80px;
  background: white;

}

div#msgbox .form {
  border-spacing: 0.5em;
}

div#msgbox .caption {
  @ELLIPSIS;
  height: 2em;
  line-height: 2em;
  text-align: center;
  color: color(bg);
  font-weight: bold;
}

div#msgbox .form .text {
  @ELLIPSIS;
}

div#msgbox button.button {
  margin-left: 1.6em;
}

div#msgbox div.password {
  position: relative;
}

div#msgbox div.password svg {
  position: absolute;
  right: 0.25em;
  top: 0.25em;
  padding: 0.5em;
  color: color(text);
}

div#msgbox div.set-password > div {
  flow: horizontal;
}

div#msgbox div.set-password > div > span {
  width: 30%;
  line-height: 2em;
}

div#msgbox div.set-password div.password {
  width: *;
}

div#msgbox div.set-password div > input {
  width: *;
}

div#msgbox div.set-password input {
  font-size: 1em;
}

div#msgbox #error {
  color: red;
}