github.com - wider, cyan colors for dark theme by the9000

/* ==UserStyle==
@name           github.com - 6/22/2022, 3:53:11 PM
@namespace      github.com/openstyles/stylus
@version        1.0.0
@description    A new userstyle
@author         Me
==/UserStyle== */

@-moz-document domain("github.com") {
    /* Colors. */
    [data-color-mode="light"][data-light-theme="dark"], [data-color-mode="dark"][data-dark-theme="dark"] {
        --color-diff-blob-addition-word-bg: hsl(120, 70%, 20%, 60%);
        --color-diff-blob-addition-line-bg: hsl(150, 20%, 10%) !important;
        --color-diff-blob-deletion-line-bg: hsl(0, 20%, 10%) !important;
    }
    
    
    /* Make "Ready for review" button highly visible. */
    .branch-action-item .btn {
        border-color: #cc3;
        background-color: #333308;
    }
    
    /* Make "Resolve conversation"  and "Unresolve conversation" look distinct. */
    form[action $= "/resolve"] > button::before {
        content: "✅ ";
    }
    form[action $= "/unresolve"] > button::before {
        content: "👈 ";
    }
    
    /* Wider default central column. */
    .container-xl {
        max-width: 140em;
    }
    
    .container_ld {
        max-width: none; /* Unset it. */
    }
    
    /* More readabale tooltips */
    tool-tip {
        background-color: #113333;
    }
    
    /* Darker monospace spans. */
    .markdown-body code, .markdown-body tt {
        background-color: #222; /* IDK if relative colors even work in Firefox. */
    }
    
    /* Cyanization. */
    
    [data-color-mode="light"][data-light-theme="dark"], [data-color-mode="dark"][data-dark-theme="dark"] {
        --color-accent-emphasis: hsl(180, 30%, 30%) !important;
        --color-accent-muted: hsl(180, 30%, 25%);
        --color-accent-subtle: hsl(180, 75%, 12%);
        --color-accent-fg: hsl(180, 30%, 50%) !important;
    }
    
    span.Counter {
        background-color:  var(--color-accent-subtle);
    }
    
    /* File browser links. */
    a.iJtJJh, a.bJBoUI, .hUWqlv {
        color: var(--color-accent-fg);
    }
    
    /* File browser intermediate paths. */
    .bFrOJy .segmentedControl-content, .dfAUyE .segmentedControl-content {
        color: var(--color-accent-fg);
        border-color: var(--color-accent-muted);
    }
    
    .gbKtit {
        background-color: var(--color-accent-subtle);
    }
    
    /* File action code / blame buttons. */
    .kdEavw {
        background-color: var(--color-accent-fg);
    }
    
    .ivYJSK {
        background-color: var(--color-accent-subtle);
    }
     
    /* File Action bar elements. */
    .kbjJSF, .jepClM, .ddNLNa, .kdEavw {
        color: var(--color-accent-emphasis);
    }
    
    /* File browser tree marker. */
    .hLwWNO .PRIVATE_TreeView-item[aria-current="true"] > .PRIVATE_TreeView-item-container::after {
        background-color: var(--color-accent-fg);
    }
    
    /* Info icons. */
    .jyqKxg {
        color: var(--color-accent-emphasis);
    }
    
}