ryujinx/docs/stylesheets/extra.css

:root {
    --md-primary-fg-color:#ff5f55;
}

/* Header text color */
.md-header__title {
    color: #ffffff;
}

/* Header repo link color */
.md-source__repository {
    color: #ffffff;
}

/* Change color of the icons in the dark/light mode toggle */
.md-header .md-icon svg {
    fill: #ffffff;
}

/* Override the banner color */
.md-header {
    background-color: #001e23;
    border-bottom: 1px solid #970b0b;
}

/* Override the tab colors */
.md-tabs {
    background-color: #001e23; 
}

/* Tab links styling */
.md-tabs__list {
    color: #ffffff;
}

/* Hover effect for all links */
a:hover,
a:focus {
    color: #01c4e5 !important;
}