icons: update pattern pseudo-icons (!533) · Merge requests · GNOME / gnome-builder · GitLab

Jakub Steiner requested to merge wip/jimmac/pattern-illustrations into main Feb 21, 2022

The new templates are GNOME (libadwaita), GTK (gtk4) and Legacy (gtk3).
should work in dark mode
these 'icons' are no longer rendered into PNGs, drop the defunct ruby script

Fixes #1629 (closed)