查看“︁MediaWiki:Gadget-ThemeSwitch.css”︁的源代码

/* ThemeSwitch gadget — floating picker */

#theme-picker {
    position: fixed;
    bottom: 5.5rem;
    right: 1.2rem;
    z-index: 9999;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#theme-toggle-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.6);
    box-shadow: 0 3px 12px rgba(0,0,0,0.25);
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s;
    outline: none;
}
#theme-toggle-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 18px rgba(0,0,0,0.3);
}

#theme-picker-menu {
    position: absolute;
    bottom: 52px;
    right: 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.18);
    padding: 0.6em;
    min-width: 130px;
    display: none;
    flex-direction: column;
    gap: 0.3em;
    border: 1px solid rgba(0,0,0,0.08);
}
#theme-picker-menu.open {
    display: flex;
}

.theme-picker-heading {
    font-size: 0.72em;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #999;
    padding: 0.2em 0.5em 0.4em;
    font-weight: 600;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 0.6em;
    padding: 0.45em 0.7em;
    border: none;
    background: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9em;
    color: #333;
    text-align: left;
    width: 100%;
    transition: background 0.15s;
}
.theme-option:hover {
    background: #f0f4f8;
}

.theme-swatch {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    flex-shrink: 0;
    display: inline-block;
}

/* Dark theme: make the menu itself dark */
html.theme-dark #theme-picker-menu {
    background: #252836;
    border-color: #2d3748;
    color: #e2e8f0;
}
html.theme-dark .theme-option { color: #e2e8f0; }
html.theme-dark .theme-option:hover { background: #2d3748; }
html.theme-dark .theme-picker-heading { color: #718096; }

/* Warm theme */
html.theme-warm #theme-picker-menu {
    background: #faf6ef;
    border-color: #e8dcc8;
}
html.theme-warm .theme-option { color: #3d2b0f; }
html.theme-warm .theme-option:hover { background: #f5ede0; }