We have a ‘scrolling wall of icons’ benchmark in our gtk4-demo app, which naturally is good place to test the performance impact of icon rendering changes. When switching it over to GtkSvg, it initially dropped from 60fps to around 40 on my laptop. We’ve since done some optimizations and regained most of the lost fps.
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Hebrew Paseq (U+05C0), which maps to lowercase l, scores 0.923 mean SSIM. This is Hebrew punctuation, not a letter, yet it renders as a vertical bar nearly identical to l. Think “paypa׀.com” with Paseq replacing the L. It scores 0.997 in Tahoma, 0.988 in Arial Unicode MS, 0.951 in Microsoft Sans Serif. The scoring surfaces it correctly.
Links to Code Toggle