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mirror of https://github.com/systemd/systemd.git synced 2025-01-03 05:18:09 +03:00

docs: add dark mode

Respect the user agent property  `prefers-color-scheme` by
rendering the documentation in dark mode, if requested.

Reorganise CSS to store the color palette into CSS variables
and reference these from another set of CSS variables that
are dynamically switched based on the prefers-color-scheme
media query.

Light mode variables stay they same as before,
but to ease color mixing, the current RGB values
have been transformed to HSL (using chrome devtools).
The current body background is now --sd-gray-extralight,
the current body color is now --sd-gray-extradark.
Other gray-variations, needed for dark-mode constrasts
are derived from these colors using HSL lightness shifting.

The systemd brand black color is used as dark mode background
and a matching extralight gray font color has been selected.

The link font-weight is reduced to 400 in dark mode,
as the green color on dark ground becomes to overwhelming
with a bold font.

The systemd logo color is dynamically swapped by using
the special fill value `currentColor` for dark/light-mode
depending parts – as per specification on brand.systemd.io
This commit is contained in:
Benjamin Franzke 2022-05-17 10:38:07 +02:00
parent 62bbb96d00
commit 9b266e4349
3 changed files with 361 additions and 223 deletions

View File

@ -5,7 +5,9 @@
<div class="wrapper">
<a class="page-logo" href="{{ site.baseurl }}/">
<img src="/assets/page-logo.svg" alt="systemd">
<svg width="202" height="26" viewBox="0 0 202 26">
<use href="/assets/systemd-logo.svg#systemd-logo"/>
</svg>
</a>
</div>

View File

@ -1,7 +1,7 @@
<svg xmlns="http://www.w3.org/2000/svg" width="202" height="26">
<svg xmlns="http://www.w3.org/2000/svg" width="202" height="26" viewBox="0 0 202 26" id="systemd-logo">
<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
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<path d="M0 0v26h10v-4H4V4h6V0zm76 0v4h6v18h-6v4h10V0z" fill="currentColor"/>
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<path d="M45 13L63 3v20z" fill="#30d475"/>
<circle cx="30" cy="13" r="9" fill="#30d475"/>
</svg>

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@ -12,6 +12,52 @@
font-weight: 600;
}
/* Variables */
:root {
--sd-brand-black: hsl(270, 19%, 13%); /* #201A26; */
--sd-brand-green: hsl(145, 66%, 51%); /* #30D475; */
--sd-brand-white: #fff;
--sd-green: hsl(145, 66%, 43%); /* #26b763 */
--sd-gray-extralight: hsl(30, 10%, 96%); /* #f6f5f4 */
--sd-gray-light: hsl(30, 10%, 92%);
--sd-gray: hsl(30, 10%, 85%);
--sd-gray-dark: hsl(257, 23%, 20%);
--sd-gray-extradark: hsl(257, 23%, 16%); /* #241f31 */
--sd-highlight-bg-light: rgba(255, 255, 255, 1);
--sd-highlight-bg-dark: rgba(0, 0, 0, .6);
--sd-highlight-inline-bg-light: rgba(0, 0, 0, 0.07);
--sd-highlight-inline-bg-dark: rgba(255, 255, 255, 0.1);
--sd-font-weight-normal: 400;
--sd-font-weight-bold: 600;
/* Light mode variables */
--sd-foreground-color: var(--sd-gray-extradark);
--sd-background-color: var(--sd-gray-extralight);
--sd-logo-color: var(--sd-brand-black);
--sd-link-color: var(--sd-green);
--sd-small-color: var(--sd-gray-dark);
--sd-highlight-bg: var(--sd-highlight-bg-light);
--sd-highlight-inline-bg: var(--sd-highlight-inline-bg-light);
--sd-link-font-weight: var(--sd-font-weight-bold);
}
@media (prefers-color-scheme: dark) {
:root {
color-scheme: dark;
--sd-foreground-color: var(--sd-gray);
--sd-background-color: var(--sd-brand-black);
--sd-logo-color: var(--sd-brand-white);
--sd-link-color: var(--sd-brand-green);
--sd-small-color: var(--sd-gray);
--sd-highlight-bg: var(--sd-highlight-bg-dark);
--sd-highlight-inline-bg: var(--sd-highlight-inline-bg-dark);
--sd-link-font-weight: var(--sd-font-weight-normal);
}
}
/* Typography */
* {
-moz-box-sizing: border-box;
@ -27,8 +73,8 @@ html, body {
line-height: 1.6;
}
body {
color: #241f31;
background-color: #f6f5f4;
color: var(--sd-foreground-color);
background-color: var(--sd-background-color);
}
h1, h2, h3, h4, h5, h6 {
margin: 1rem 0 0.625rem;
@ -57,9 +103,9 @@ h3 {
font-size: 1.15rem;
}
a {
font-weight: 600;
font-weight: var(--sd-link-font-weight);
text-decoration: none;
color: #26b763;
color: var(--sd-link-color);
cursor: pointer;
}
a:hover {
@ -69,7 +115,7 @@ b {
font-weight: 600;
}
small {
color: #777;
color: var(--sd-small-color);
}
hr {
margin: 3rem auto 4rem;
@ -89,8 +135,9 @@ hr {
.page-logo {
display: block;
padding: 5rem 0 3rem;
color: var(--sd-logo-color);
}
.page-logo > img {
.page-logo > svg {
display: block;
width: 12.625em;
height: auto;
@ -98,16 +145,16 @@ hr {
}
.brand-white {
background-color: #fff;
background-color: var(--sd-brand-white);
}
.brand-green {
background-color: #30D475;
background-color: var(--sd-brand-green);
}
.brand-black {
background-color: #201A26;
color: white;
background-color: var(--sd-brand-black);
color: var(--sd-white);
}
.page-link::after {
@ -132,6 +179,8 @@ tbody td {
/* Generated with: rougify style github | sed '/background-color: #f8f8f8/d' */
.highlight table td { padding: 5px; }
.highlight table pre { margin: 0; }
@media (prefers-color-scheme: light) {
.highlight .cm {
color: #999988;
font-style: italic;
@ -340,13 +389,96 @@ tbody td {
.highlight .w {
color: #bbbbbb;
}
}
@media (prefers-color-scheme: dark) {
/* rouge "base16.dark" code highlight */
/* generated with: rougify style base16.dark | sed '/background-color: #151515/d' */
.highlight, .highlight .w {
color: #d0d0d0;
}
.highlight .err {
color: #151515;
background-color: #ac4142;
}
.highlight .c, .highlight .ch, .highlight .cd, .highlight .cm, .highlight .cpf, .highlight .c1, .highlight .cs {
color: #505050;
}
.highlight .cp {
color: #f4bf75;
}
.highlight .nt {
color: #f4bf75;
}
.highlight .o, .highlight .ow {
color: #d0d0d0;
}
.highlight .p, .highlight .pi {
color: #d0d0d0;
}
.highlight .gi {
color: #90a959;
}
.highlight .gd {
color: #ac4142;
}
.highlight .gh {
color: #6a9fb5;
font-weight: bold;
}
.highlight .k, .highlight .kn, .highlight .kp, .highlight .kr, .highlight .kv {
color: #aa759f;
}
.highlight .kc {
color: #d28445;
}
.highlight .kt {
color: #d28445;
}
.highlight .kd {
color: #d28445;
}
.highlight .s, .highlight .sb, .highlight .sc, .highlight .dl, .highlight .sd, .highlight .s2, .highlight .sh, .highlight .sx, .highlight .s1 {
color: #90a959;
}
.highlight .sa {
color: #aa759f;
}
.highlight .sr {
color: #75b5aa;
}
.highlight .si {
color: #8f5536;
}
.highlight .se {
color: #8f5536;
}
.highlight .nn {
color: #f4bf75;
}
.highlight .nc {
color: #f4bf75;
}
.highlight .no {
color: #f4bf75;
}
.highlight .na {
color: #6a9fb5;
}
.highlight .m, .highlight .mb, .highlight .mf, .highlight .mh, .highlight .mi, .highlight .il, .highlight .mo, .highlight .mx {
color: #90a959;
}
.highlight .ss {
color: #90a959;
}
}
/* Code Blocks */
.highlighter-rouge {
padding: 2px 1rem;
border-radius: 5px;
background-color: white;
color: var(--sd-foreground-color);
background-color: var(--sd-highlight-bg);
overflow: auto;
}
@ -358,5 +490,9 @@ tbody td {
/* Inline Code */
code.highlighter-rouge {
padding: 2px 6px;
background-color: rgba(0,0,0, 0.07);
background-color: var(--sd-highlight-inline-bg);
}
a code.highlighter-rouge {
color: inherit;
}