RealPython Dark Grey Theme by p1co

/* ==UserStyle==
@name         RealPython Dark Theme
@namespace    USO Archive
@author       Idomo
@description  A dark theme for realpython.com  *Based on: https://userstyles.org/styles/152699/basic-dark-for-realpython
@version      20191205.16.03
@license      NONE
@preprocessor uso
==/UserStyle== */
@-moz-document domain("realpython.com") {
    body {
        background: #1c1c1c !important;
        color: #999 !important;
    }

    .bg-light {
        background-color: #1c1c1c!important
    }

    .pre-code,
    html .gist .gist-file .gist-syntax .highlight pre,
    .highlight code {
        background: #000 !important;
    }

    .highlight,
    .gist-highlight {
        background: #000 !important;
    }

    code {
        background-color: #333 !important;
        color: #0b8cb5 !important;
        padding: 2px 0.5px;
    }

    figure.code:not(.panel) figcaption,
    figure.code:not(.panel) .gist-file,
    .gist figcaption,
    .gist .gist-file {
        background-color: #555 !important;
    }

    figure.code:not(.panel),
    .gist {
        border: 2px solid #111;
        border-top-color: rgb(17, 17, 17);
        border-top-style: solid;
        border-top-width: 1px;
        border-right-color: rgb(17, 17, 17);
        border-right-style: solid;
        border-right-width: 1px;
        border-bottom-color: rgb(17, 17, 17);
        border-bottom-style: solid;
        border-bottom-width: 1px;
        border-left-color: rgb(17, 17, 17);
        border-left-style: solid;
        border-left-width: 1px;
        border-image-source: initial;
        border-image-slice: initial;
        border-image-width: initial;
        border-image-outset: initial;
        border-image-repeat: initial;
    }

    .highlight pre,
    pre {
        filter: invert(90%);
    }

    .highlight::before,
    .alert {
        filter: brightness(80%);
    }

    .card {
        background-color: #000;
    }

    .rpad,
    .card-img-top {
        filter: brightness(50%);
        transition: all 1s ease;
    }

    .rpad:hover,
    .card-img-top:hover {
        filter: brightness(80%);
    }

    .bg-secondary {
        background-color: #222 !important;
    }

    .badge-light {
        background-color: #444;
    }
}