docs: Add background patterns

.docs/_includes/theme.njk

@@ -35,7 +35,7 @@
 				{% endfor %}
 			</ul>
 			
-			<p>Tech: <a href="https://www.11ty.dev/">Eleventy</a> (this website), <a href="https://github.com/shssoichiro/oxipng">Oxipng</a> (PNG image compression), <a href="https://www.minetest.net/">Minetest</a> (of course)</p>
+			<p>Tech: <a href="https://www.11ty.dev/">Eleventy</a> (this website), <a href="https://www.heropatterns.com/">Hero Patterns</a> (background patterns), <a href="https://github.com/shssoichiro/oxipng">Oxipng</a> (PNG image compression), <a href="https://www.minetest.net/">Minetest</a> (of course)</p>
 			<p>Licensed under the <a href="https://www.mozilla.org/en-US/MPL/2.0/">Mozilla Public Licence 2.0</a> (<a href="https://tldrlegal.com/license/mozilla-public-license-2.0-(mpl-2)">tldr</a>)</p>
 		</footer>
 	</body>

.docs/css.njk

@@ -1,5 +1,6 @@
 ---
 permalink: theme.css
 ---
+{% include "css/patterns.css" %}
 {% include "css/theme.css" %}
 {% include "css/gallerybox.css" %}

.docs/css/patterns.css

@@ -0,0 +1,6 @@
+:root {
+	/* Ref https://www.heropatterns.com/ */
+	--pattern-bricks: url("data:image/svg+xml,%3Csvg width='42' height='44' viewBox='0 0 42 44' xmlns='http://www.w3.org/2000/svg'%3E%3Cg id='Page-1' fill='none' fill-rule='evenodd'%3E%3Cg id='brick-wall' fill='%236ca8c7' fill-opacity='0.14'%3E%3Cpath d='M0 0h42v44H0V0zm1 1h40v20H1V1zM0 23h20v20H0V23zm22 0h20v20H22V23z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
+	--pattern-hex: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cg fill-rule='evenodd'%3E%3Cg id='hexagons' fill='%236ca8c7' fill-opacity='0.1' fill-rule='nonzero'%3E%3Cpath d='M13.99 9.25l13 7.5v15l-13 7.5L1 31.75v-15l12.99-7.5zM3 17.9v12.7l10.99 6.34 11-6.35V17.9l-11-6.34L3 17.9zM0 15l12.98-7.5V0h-2v6.35L0 12.69v2.3zm0 18.5L12.98 41v8h-2v-6.85L0 35.81v-2.3zM15 0v7.5L27.99 15H28v-2.31h-.01L17 6.35V0h-2zm0 49v-8l12.99-7.5H28v2.31h-.01L17 42.15V49h-2z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
+	--pattern-jigsaw-green: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='192' height='192' viewBox='0 0 192 192'%3E%3Cpath fill='%23b7e3ad' fill-opacity='0.4' d='M192 15v2a11 11 0 0 0-11 11c0 1.94 1.16 4.75 2.53 6.11l2.36 2.36a6.93 6.93 0 0 1 1.22 7.56l-.43.84a8.08 8.08 0 0 1-6.66 4.13H145v35.02a6.1 6.1 0 0 0 3.03 4.87l.84.43c1.58.79 4 .4 5.24-.85l2.36-2.36a12.04 12.04 0 0 1 7.51-3.11 13 13 0 1 1 .02 26 12 12 0 0 1-7.53-3.11l-2.36-2.36a4.93 4.93 0 0 0-5.24-.85l-.84.43a6.1 6.1 0 0 0-3.03 4.87V143h35.02a8.08 8.08 0 0 1 6.66 4.13l.43.84a6.91 6.91 0 0 1-1.22 7.56l-2.36 2.36A10.06 10.06 0 0 0 181 164a11 11 0 0 0 11 11v2a13 13 0 0 1-13-13 12 12 0 0 1 3.11-7.53l2.36-2.36a4.93 4.93 0 0 0 .85-5.24l-.43-.84a6.1 6.1 0 0 0-4.87-3.03H145v35.02a8.08 8.08 0 0 1-4.13 6.66l-.84.43a6.91 6.91 0 0 1-7.56-1.22l-2.36-2.36A10.06 10.06 0 0 0 124 181a11 11 0 0 0-11 11h-2a13 13 0 0 1 13-13c2.47 0 5.79 1.37 7.53 3.11l2.36 2.36a4.94 4.94 0 0 0 5.24.85l.84-.43a6.1 6.1 0 0 0 3.03-4.87V145h-35.02a8.08 8.08 0 0 1-6.66-4.13l-.43-.84a6.91 6.91 0 0 1 1.22-7.56l2.36-2.36A10.06 10.06 0 0 0 107 124a11 11 0 0 0-22 0c0 1.94 1.16 4.75 2.53 6.11l2.36 2.36a6.93 6.93 0 0 1 1.22 7.56l-.43.84a8.08 8.08 0 0 1-6.66 4.13H49v35.02a6.1 6.1 0 0 0 3.03 4.87l.84.43c1.58.79 4 .4 5.24-.85l2.36-2.36a12.04 12.04 0 0 1 7.51-3.11A13 13 0 0 1 81 192h-2a11 11 0 0 0-11-11c-1.94 0-4.75 1.16-6.11 2.53l-2.36 2.36a6.93 6.93 0 0 1-7.56 1.22l-.84-.43a8.08 8.08 0 0 1-4.13-6.66V145H11.98a6.1 6.1 0 0 0-4.87 3.03l-.43.84c-.79 1.58-.4 4 .85 5.24l2.36 2.36a12.04 12.04 0 0 1 3.11 7.51A13 13 0 0 1 0 177v-2a11 11 0 0 0 11-11c0-1.94-1.16-4.75-2.53-6.11l-2.36-2.36a6.93 6.93 0 0 1-1.22-7.56l.43-.84a8.08 8.08 0 0 1 6.66-4.13H47v-35.02a6.1 6.1 0 0 0-3.03-4.87l-.84-.43c-1.59-.8-4-.4-5.24.85l-2.36 2.36A12 12 0 0 1 28 109a13 13 0 1 1 0-26c2.47 0 5.79 1.37 7.53 3.11l2.36 2.36a4.94 4.94 0 0 0 5.24.85l.84-.43A6.1 6.1 0 0 0 47 84.02V49H11.98a8.08 8.08 0 0 1-6.66-4.13l-.43-.84a6.91 6.91 0 0 1 1.22-7.56l2.36-2.36A10.06 10.06 0 0 0 11 28 11 11 0 0 0 0 17v-2a13 13 0 0 1 13 13c0 2.47-1.37 5.79-3.11 7.53l-2.36 2.36a4.94 4.94 0 0 0-.85 5.24l.43.84A6.1 6.1 0 0 0 11.98 47H47V11.98a8.08 8.08 0 0 1 4.13-6.66l.84-.43a6.91 6.91 0 0 1 7.56 1.22l2.36 2.36A10.06 10.06 0 0 0 68 11 11 11 0 0 0 79 0h2a13 13 0 0 1-13 13 12 12 0 0 1-7.53-3.11l-2.36-2.36a4.93 4.93 0 0 0-5.24-.85l-.84.43A6.1 6.1 0 0 0 49 11.98V47h35.02a8.08 8.08 0 0 1 6.66 4.13l.43.84a6.91 6.91 0 0 1-1.22 7.56l-2.36 2.36A10.06 10.06 0 0 0 85 68a11 11 0 0 0 22 0c0-1.94-1.16-4.75-2.53-6.11l-2.36-2.36a6.93 6.93 0 0 1-1.22-7.56l.43-.84a8.08 8.08 0 0 1 6.66-4.13H143V11.98a6.1 6.1 0 0 0-3.03-4.87l-.84-.43c-1.59-.8-4-.4-5.24.85l-2.36 2.36A12 12 0 0 1 124 13a13 13 0 0 1-13-13h2a11 11 0 0 0 11 11c1.94 0 4.75-1.16 6.11-2.53l2.36-2.36a6.93 6.93 0 0 1 7.56-1.22l.84.43a8.08 8.08 0 0 1 4.13 6.66V47h35.02a6.1 6.1 0 0 0 4.87-3.03l.43-.84c.8-1.59.4-4-.85-5.24l-2.36-2.36A12 12 0 0 1 179 28a13 13 0 0 1 13-13zM84.02 143a6.1 6.1 0 0 0 4.87-3.03l.43-.84c.8-1.59.4-4-.85-5.24l-2.36-2.36A12 12 0 0 1 83 124a13 13 0 1 1 26 0c0 2.47-1.37 5.79-3.11 7.53l-2.36 2.36a4.94 4.94 0 0 0-.85 5.24l.43.84a6.1 6.1 0 0 0 4.87 3.03H143v-35.02a8.08 8.08 0 0 1 4.13-6.66l.84-.43a6.91 6.91 0 0 1 7.56 1.22l2.36 2.36A10.06 10.06 0 0 0 164 107a11 11 0 0 0 0-22c-1.94 0-4.75 1.16-6.11 2.53l-2.36 2.36a6.93 6.93 0 0 1-7.56 1.22l-.84-.43a8.08 8.08 0 0 1-4.13-6.66V49h-35.02a6.1 6.1 0 0 0-4.87 3.03l-.43.84c-.79 1.58-.4 4 .85 5.24l2.36 2.36a12.04 12.04 0 0 1 3.11 7.51A13 13 0 1 1 83 68a12 12 0 0 1 3.11-7.53l2.36-2.36a4.93 4.93 0 0 0 .85-5.24l-.43-.84A6.1 6.1 0 0 0 84.02 49H49v35.02a8.08 8.08 0 0 1-4.13 6.66l-.84.43a6.91 6.91 0 0 1-7.56-1.22l-2.36-2.36A10.06 10.06 0 0 0 28 85a11 11 0 0 0 0 22c1.94 0 4.75-1.16 6.11-2.53l2.36-2.36a6.93 6.93 0 0 1 7.56-1.22l.84.43a8.08 8.08 0 0 1 4.13 6.66V143h35.02z'%3E%3C/path%3E%3C/svg%3E");
+}

.docs/css/theme.css

@@ -33,16 +33,6 @@
 	--highlight: hsl(353, 100%, 36%);
 }
 
-/* @media (prefers-color-scheme: dark) {
-	:root {
-		--bg-main: #232323;
-		--bg-bright: black;
-		--bg-transcluscent: rgba(50, 50, 50, 0.5);
-		
-		--text-main: #f3f3f3;
-	}
-} */
-
 /* rem is relative to the html element, and em is relative to the current element. */
 html { font-size: 100%; scroll-behavior: smooth; }
 
@@ -220,7 +210,10 @@ footer {
 	margin: 3em 0 0 0;
 	padding: 1em;
 	text-align: center;
-	background: var(--bg-bright);
+	background-color: #7ac767;
+	/* Ref https://www.heropatterns.com/ */
+	background: var(--pattern-jigsaw-green),
+		var(--bg-bright);
 	/* color: var(--text-bright); */
 }
 
@@ -250,6 +243,7 @@ footer {
 	align-items: center; justify-content: center;
 	background: content-box linear-gradient(var(--bg-transcluscent), var(--bg-transcluscent)),
 		var(--bg) center / cover;
+	
 	height: 80vh;
 	padding: 0 5em 0 5em;
 	box-sizing: border-box;
@@ -269,6 +263,7 @@ footer {
 }
 .features-large > :where(figure, .features-item) {
 	background: var(--bg-transcluscent);
+	background-image: var(--pattern-bricks);
 	margin: 0.1em;
 	padding: 1em;
 	max-width: 15em;
@@ -292,6 +287,7 @@ footer {
 
 .panel-generic {
 	background: var(--bg-transcluscent);
+	background-image: var(--pattern-bricks);
 	margin: 2em;
 	padding: 1em;
 	box-shadow: 0.25em 0.25em 0.5em var(--shadow);
@@ -340,7 +336,7 @@ footer {
 }
 
 .gallerybox {
-	background: var(--bg-transcluscent);
+	background: var(--pattern-hex), var(--bg-transcluscent);
 }