Infra: Only invert image brightness, not hue (#2949)

Since inversion doesn’t just affect brightness, but also hue, there’s a problem: Some background colors have perceptually less contrast with their text when hue rotated. This rotates their hue back, fixing the contrast issue.
2023-01-06 17:33:58 +01:00 · 2023-01-06 17:33:58 +01:00 · 631ee6ce60
parent 32c692b214
commit 631ee6ce60
1 changed files with 1 additions and 1 deletions
--- a/pep_sphinx_extensions/pep_theme/static/style.css
+++ b/pep_sphinx_extensions/pep_theme/static/style.css
@ -53,7 +53,7 @@
 }

 img.invert-in-dark-mode {
-    filter: var(--dark, invert(1));
+    filter: var(--dark, invert(1) hue-rotate(.5turn));
 }

 /* Set master rules */