Testing how this works. by MuneSiriou

/* ==UserStyle==
@name           Facebook Anime Theme
@namespace      userstyles.world/user/yourusername
@version        1.0.0
@description    An anime-inspired theme for Facebook
@preprocessor   stylus
==/UserStyle== */

@-moz-document domain("facebook.com") {
    /* Background */
    body, #globalContainer {
        background-color: #f0e6f6 !important;
        color: #2c2c2c !important;
    }

    /* Header */
    #blueBarDOMInspector, ._1tqi {
        background-color: #ff66cc !important;
    }

    /* Links */
    a {
        color: #ff66cc !important;
    }

    /* Buttons */
    button, input[type="submit"], ._42ft, ._271k ._271m, ._1mf7 {
        background-color: #ff66cc !important;
        border-color: #ff66cc !important;
        color: #ffffff !important;
    }

    /* Sidebar */
    ._1enh, ._1enb, ._1eo0 {
        background-color: #fff0f5 !important;
    }

    /* Posts Background */
    ._5pcb, ._4-u2 {
        background-color: #ffffff !important;
    }

    /* Fonts */
    body, input, textarea, div {
        font-family: "Comic Sans MS", cursive, sans-serif !important;
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #f0e6f6;
    }
    ::-webkit-scrollbar-thumb {
        background: #ff66cc;
    }

    /* Remove Ads */
    div[id^="pagelet_ego_pane"] {
        display: none !important;
    }
}