doc: make graphviz diagrams look good in dark theme

kartben · dkalowsk · commit d5d5a7c7db05 · 2025-05-09T10:34:47.000-07:00
Add filter to invert colors in dark mode. Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org> (cherry picked from commit fd919b5)
diff --git a/doc/_static/css/custom.css b/doc/_static/css/custom.css
@@ -921,6 +921,10 @@ dark-mode-toggle::part(toggleLabel){
   font-size: unset;
 }
 
+div.graphviz > object {
+    filter: var(--graphviz-filter);
+}
+
 /* Home page grid display */
 .grid {
     list-style-type: none !important;
diff --git a/doc/_static/css/dark.css b/doc/_static/css/dark.css
@@ -93,4 +93,6 @@
     --btn-neutral-background-color: #404040;
     --btn-neutral-hover-background-color: #505050;
     --footer-color: #aaa;
+
+    --graphviz-filter: invert(0.9) brightness(1.2);
 }
diff --git a/doc/_static/css/light.css b/doc/_static/css/light.css
@@ -91,4 +91,6 @@
     --btn-neutral-background-color: #f3f6f6;
     --btn-neutral-hover-background-color: #e5ebeb;
     --footer-color: #808080;
+
+    --graphviz-filter: none;
 }

Original file line number	Diff line number	Diff line change
`@@ -93,4 +93,6 @@`
`93`	`93`	`--btn-neutral-background-color: #404040;`
`94`	`94`	`--btn-neutral-hover-background-color: #505050;`
`95`	`95`	`--footer-color: #aaa;`
	`96`	`+`
	`97`	`+ --graphviz-filter: invert(0.9) brightness(1.2);`
`96`	`98`	`}`
Original file line number	Diff line number	Diff line change
`@@ -91,4 +91,6 @@`
`91`	`91`	`--btn-neutral-background-color: #f3f6f6;`
`92`	`92`	`--btn-neutral-hover-background-color: #e5ebeb;`
`93`	`93`	`--footer-color: #808080;`
	`94`	`+`
	`95`	`+ --graphviz-filter: none;`
`94`	`96`	`}`