pimoroni-pico/micropython/examples/galactic_unicorn/galactic_paint/galactic_paint/static/paint.css

body {
    background:#333;
    padding:20px;
    font-family:Arial, Verdana, Sans-Serif;
    background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAaUlEQVQYV33Q0Q3AIAgEUBjBFVyBFRzbWVjBEajXBIOVypcJj1NhETG61BiDVJX4Bh211v5hRDiniV+Elx0wQwd0hEatlUop65srMSah23vf8Auz65AWMc8rDHvCCjAQK2KeDcuQDzh+AHEJX8mbbU1BAAAAAElFTkSuQmCC) repeat;
}

.icons {
    position:absolute;
    margin:0;
    padding:20px;
    list-style:none;
}

.icons li {
    margin:20px;
    padding:0;
    list-style:none;
    padding-top:80px;
    width:100px;
}

.icons li span {
    background:#FFF;
    color:#000;
    border:1px solid #000;
    line-height:20px;
    padding:5px 10px;
    text-align:center;
    font-size:10px;
    line-height:10px;
    display:inline-block;
}

#palette ul, #palette li {
    margin:0;padding:0;list-style:none;
}

#palette {
    list-style:none;
    position:relative;
    height: 122px;
    padding:0 8px;
}

#palette ul {
    display:block;
    width:456px;
    float: left;
}

#palette li, #palette input {
    border: 2px outset;
    width:49px;
    height:49px;
    float:left;
    display:block;
    margin:2px;
}

#palette input {
    width:110px;
    height:110px;
}

.window {
    width: 976px;
    position: relative;
    background: #0E071A;
    box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.5);
}

.tools {
    margin:0;padding:0;list-style:none;
    clear:both;
    display:block;
    position:absolute;
    top: 50px;
    right: 8px;
    width: 98px;
    background:#999999;
    font-size:0;
}
.tools span {
    line-height:30px;
}

.tools li {
    font-size:16px;
    width: 45px;
    height: 40px;
    text-align:center;
    margin:0;
    padding:0;
    display:inline-block;
    line-height:40px;
    border:2px outset #EEEEEE;
    background:#F5F5F5;
    cursor:pointer;
    color:#000;
}

.tools li.selected {
    background:#000;
    color:#FFF;
}

h1 {
    color: #FFF;
    background: #6D38BB;
    height:40px;
    margin:0;
    padding:0 8px;
    line-height:40px;
    font-weight:normal;
    font-size:24px;
}

table {
    clear:both;
    cursor:pointer;
    margin:10px;
    border:1px solid #333;
    background: #000000;
}

table td {
    width:14px;
    height:14px;
    border:1px solid #333;
}