hugo-theme-relearn/css/theme-neon.css

:root {
    --PRIMARY-color: rgba( 243, 0, 178, 1 ); /* brand primary color */
    --SECONDARY-color: rgba( 28, 144, 243, 1 ); /* brand secondary color */
    --ACCENT-color: rgba( 255, 255, 0, 1 ); /* brand accent color, used for search highlights */

    --MAIN-TEXT-color: rgba( 224, 224, 224, 1 ); /* text color of content and h1 titles */
    --MAIN-LINK-HOVER-color: rgba( 76, 171, 255, 1 ); /* hovered link color of content */
    --MAIN-BG-color: rgba( 16, 16, 16, 1 ); /* background color of content */

    /* optional overwrites for specific headers */
    --MAIN-TITLES-TEXT-color: rgba( 243, 0, 178, 1 ); /* text color of h2-h6 titles and transparent box titles */
    --MAIN-TITLES-H3-color: rgba( 0, 243, 211, 1 ); /* text color of h3-h6 titles */
    --MAIN-TITLES-H4-color: rgba( 255, 255, 0, 1 ); /* text color of h4-h6 titles */

    --CODE-theme: neon; /* name of the chroma stylesheet file */
    --CODE-BLOCK-color: rgba( 248, 248, 242, 1 ); /* fallback text color of block code; should be adjusted to your selected chroma style */
    --CODE-BLOCK-BG-color: rgba( 0, 0, 0, 1 ); /* fallback background color of block code; should be adjusted to your selected chroma style */
    --CODE-INLINE-color: rgba( 130, 229, 80, 1 ); /* text color of inline code */
    --CODE-INLINE-BG-color: rgba( 40, 42, 54, 1 ); /* background color of inline code */
    --CODE-INLINE-BORDER-color: rgba( 70, 70, 70, 1 ); /* border color of inline code */

    --BROWSER-theme: dark; /* name of the theme for browser scrollbars of the main section */
    --MERMAID-theme: dark; /* name of the default Mermaid theme for this variant, can be overridden in hugo.toml */
    --OPENAPI-theme: dark; /* name of the default OpenAPI theme for this variant, can be overridden in hugo.toml */
    --OPENAPI-CODE-theme: tomorrow-night; /* name of the default OpenAPI code theme for this variant, can be overridden in hugo.toml */

    --MENU-HEADER-BG-color: rgba( 0, 0, 0, 0 ); /* background color of menu header */

    --MENU-HOME-LINK-color: rgba( 255, 255, 255, 1 ); /* home button color if configured */
    --MENU-HOME-LINK-HOVER-color: rgba( 208, 208, 208, 1 ); /* hovered home button color if configured */

    --MENU-SEARCH-color: rgba( 248, 248, 248, 1 ); /* text and icon color of search box */
    --MENU-SEARCH-BG-color: rgba( 16, 16, 16, .6 ); /* background color of search box */
    --MENU-SEARCH-BORDER-color: rgba( 232, 232, 232, 1 ); /* border color of search box */

    --MENU-SECTIONS-BG-color: linear-gradient( 165deg, rgba( 243, 0, 178, .825 ) 0%, rgba( 28, 144, 243, .7 ) 65%, rgba( 0, 227, 211, .7 ) 100% ); /* background of the menu; this is NOT just a color value but can be a complete CSS background definition including gradients, etc. */
    --MENU-SECTIONS-ACTIVE-BG-color: rgba( 0, 0, 0, .166 ); /* background color of the active menu section */
    --MENU-SECTIONS-LINK-color: rgba( 255, 255, 255, 1 ); /* link color of menu topics */
    --MENU-SECTIONS-LINK-HOVER-color: rgba( 208, 208, 208, 1 ); /* hovered link color of menu topics */
    --MENU-SECTION-ACTIVE-CATEGORY-color: rgba( 86, 255, 232, 1 ); /* text color of the displayed menu topic */
    --MENU-SECTION-SEPARATOR-color: rgba( 186, 186, 186, 1 ); /* separator color between menu sections and menu footer */

    --MENU-VISITED-color: rgba( 51, 161, 255, 1 ); /* icon color of visited menu topics if configured */

    /* base styling for boxes */
    --BOX-CAPTION-color: rgba( 240, 240, 240, 1 ); /* text color of colored box titles */
    --BOX-BG-color: rgba( 8, 8, 8, 1 ); /* background color of colored boxes */
    --BOX-TEXT-color: initial; /* text color of colored box content */

    /* optional base colors for colored boxes as in badges, buttons, notice, etc. shortcode */
    --BOX-BLUE-color: rgba( 48, 117, 229, 1 ); /* background color of blue boxes */
    --BOX-BLUE-TEXT-color: var( --BOX-BLUE-color ); /* text color of blue boxes */
    --BOX-GREEN-color: rgba( 42, 178, 24, 1 ); /* background color of green boxes */
    --BOX-GREEN-TEXT-color: var( --BOX-GREEN-color ); /* text color of green boxes */
    --BOX-GREY-color: rgba( 128, 128, 128, 1 ); /* background color of grey boxes */
    --BOX-GREY-TEXT-color: var( --BOX-GREY-color ); /* text color of grey boxes */
    --BOX-ORANGE-color: rgba( 237, 153, 9, 1 ); /* background color of orange boxes */
    --BOX-ORANGE-TEXT-color: var( --BOX-ORANGE-color ); /* text color of orange boxes */
    --BOX-RED-color: rgba( 224, 62, 62, 1 ); /* background color of red boxes */
    --BOX-RED-TEXT-color: var( --BOX-RED-color ); /* text color of red boxes */
}

body a#R-logo,
body a#R-logo:hover,
body #R-logo svg,
body #R-logo svg * {
    color: var(--INTERNAL-MENU-SEARCH-BORDER-color);
    fill: var(--INTERNAL-MENU-SEARCH-BORDER-color) !important;
}

body a#R-logo{
    text-shadow:
        0 0  1px var(--INTERNAL-MENU-SEARCH-BORDER-color),
        0 0  2px var(--INTERNAL-MENU-SEARCH-BORDER-color),
        0 0  4px var(--INTERNAL-MENU-SEARCH-BORDER-color),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color),
        0 0  8px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color);
}

body h1 {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  4px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 255, 255, 255, 1 ),
        0 0  3px var(--INTERNAL-MAIN-TITLES-H1-color),
        0 0  6px var(--INTERNAL-MAIN-TITLES-H1-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H1-color);
}

body h2 {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MAIN-TITLES-H2-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H2-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H2-color);
}

body h3, body .article-subheading {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MAIN-TITLES-H3-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H3-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H3-color);
}

body h4 {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MAIN-TITLES-H4-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H4-color),
        0 0 10px var(--INTERNAL-MAIN-TITLES-H4-color);
}

body h5 {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  3px rgba( 255, 255, 255, 1 ),
        0 0  6px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MAIN-TITLES-H5-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H5-color);
}

body h6 {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  4px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MAIN-TITLES-H6-color),
        0 0  8px var(--INTERNAL-MAIN-TITLES-H6-color);
}

.swagger-ui h4,
.swagger-ui h5,
.swagger-ui h6{
    color: rgba( 255, 255, 255, 1 ) !important;
}

body #R-sidebar .searchbox button:hover{
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MENU-SEARCH-color),
        0 0  8px var(--INTERNAL-MENU-SEARCH-color);
}

body #R-sidebar select:hover,
body #R-sidebar .collapsible-menu li:not(.active) > label:hover,
body #R-sidebar .menu-control:hover,
body #R-sidebar a:hover,
body #R-prefooter button:hover {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color),
        0 0  8px var(--INTERNAL-MENU-SECTIONS-LINK-HOVER-color);
}

body #R-sidebar li.active > label,
body #R-sidebar li.active > :is( a, span ) {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MENU-SECTION-ACTIVE-CATEGORY-color),
        0 0  8px var(--INTERNAL-MENU-SECTION-ACTIVE-CATEGORY-color);
}

body #R-homelinks a:hover {
    color: rgba( 255, 255, 255, 1 );
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  8px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--INTERNAL-MENU-HOME-LINK-HOVER-color),
        0 0  8px var(--INTERNAL-MENU-HOME-LINK-HOVER-color);
}

body h1 a,
body h2 a,
body h3 a,
body h4 a,
body h5 a,
body h6 a,
body .anchor {
    text-shadow: none;
}

body .badge,
body .btn,
body div.box {
    box-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  4px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--VARIABLE-BOX-color);
}

body .badge > .badge-content,
body .btn,
body .btn > *,
body div.box > .box-label {
    text-shadow:
        0 0  1px rgba( 255, 255, 255, 1 ),
        0 0  2px rgba( 255, 255, 255, 1 ),
        0 0  4px rgba( 128, 128, 128, 1 ),
        0 0  4px var(--VARIABLE-BOX-CAPTION-color);
}

body .tab-panel-cstyle:not(.transparent),
body .badge.cstyle:not(.transparent),
body .btn.cstyle {
    --VARIABLE-BOX-TEXT-color: var(--VARIABLE-BOX-CAPTION-color);
}

body .badge.cstyle.transparent,
body .btn.cstyle.transparent {
    --VARIABLE-BOX-BG-color: var(--INTERNAL-BOX-BG-color);
}

body .btn.cstyle.transparent > * {
    border-color: var(--VARIABLE-BOX-color);
    color: var(--VARIABLE-BOX-CAPTION-color);
}

body .btn.cstyle.interactive.transparent > *:hover,
body .btn.cstyle.interactive.transparent > *:active,
body .btn.cstyle.interactive.transparent > *:focus {
    background-color: var(--INTERNAL-MAIN-TITLES-TEXT-color);
    color: var(--INTERNAL-MAIN-TEXT-color);
}

body .box.cstyle.transparent {
    box-shadow: none;
}

@media print {
    #R-body h1,
    #R-body h2,
    #R-body h3, #R-body .article-subheading,
    #R-body h4,
    #R-body h5,
    #R-body h6 {
        text-shadow: none;
    }
    #R-body .badge,
    #R-body .badge > .badge-content,
    #R-body .btn,
    #R-body .btn > *,
    #R-body div.box,
    #R-body div.box > .box-label {
        box-shadow: none;
        text-shadow: none;
    }
    #R-body .badge.cstyle:not(.transparent),
    #R-body .btn.cstyle {
        --VARIABLE-BOX-TEXT-color: var(--INTERNAL-BOX-NEUTRAL-TEXT-color);
    }
}

/* if we are in print chapter preview our @media statement from
above will not apply, so we have to repeat it here */
.print #R-body h1,
.print #R-body h2,
.print #R-body h3, .print #R-body .article-subheading,
.print #R-body h4,
.print #R-body h5,
.print #R-body h6 {
    text-shadow: none;
}
.print #R-body .badge,
.print #R-body .badge > .badge-content,
.print #R-body .btn,
.print #R-body .btn > *,
.print #R-body div.box,
.print #R-body div.box > .box-label {
    box-shadow: none;
    text-shadow: none;
}
.print #R-body .badge.cstyle:not(.transparent),
.print #R-body .btn.cstyle {
    --VARIABLE-BOX-TEXT-color: var(--INTERNAL-BOX-NEUTRAL-TEXT-color);
}

#R-content-wrapper {
    --ps-thumb-color: rgba( 208, 208, 208, 1 );
    --ps-thumb-hover-color: rgba( 204, 204, 204, 1 );
}

}