[stachbial]

Description

• New iconSets option curveTolerance: how far the font's curves may be from the SVG's, as a fraction of the em (the size prop). The default is 1/512, as before. It is part of the fingerprint, so font families are renamed once.
• README: the new option. FONT_INTEGRITY.md: the fingerprint inputs.

Test plan

• yarn test (617 tests), ts-check and lint clean. New: iconSetOptions, fingerprint and CLI validation for curveTolerance.
• curveTolerance: 1/8192 on a test set: the font grows from 23,192 to 26,976 bytes and renders the same.

[github-actions]

Font benchmark: ✅ pass

base 681d3ca → pr ac0e1fe. 3 runs per set. Sizes are exact; times come from separate runners.

Details

Fonts

Raw is the .ttf on disk. Compressed is the same file after deflate at level 9, which is roughly what an APK or IPA carries.

Set	Raw	Compressed
MaterialIcons_baseline	307,392 → 307,392 (0.0%)	163,726 → 163,726 (0.0%)
MaterialIcons_outline	337,968 → 337,968 (0.0%)	182,623 → 182,623 (0.0%)
MaterialIcons_round	416,836 → 416,836 (0.0%)	216,805 → 216,805 (0.0%)
MaterialIcons_sharp	273,120 → 273,120 (0.0%)	150,595 → 150,595 (0.0%)
MaterialIcons_twotone	451,124 → 451,124 (0.0%)	236,451 → 236,451 (0.0%)
SWMIcons_outline	107,096 → 107,096 (0.0%)	28,616 → 28,616 (0.0%)
SWMIcons_duotone	115,600 → 115,600 (0.0%)	34,117 → 34,117 (0.0%)
SWMIcons_curved	102,524 → 102,524 (0.0%)	31,597 → 31,597 (0.0%)

Package

	base	pr	Δ
Tarball bytes	134,784	135,128	+0.3%
Files	290	290

Checks

Check	Limit	Result
Raw font growth	≤ 6% per set	✅
Tarball growth	≤ 6%	✅
Byte-identical rebuilds	required	✅ (base: yes)
OpenType Sanitizer	every font accepted	✅

Build time, median of 3 runs (not gated)

Set	base	pr	Δ
MaterialIcons_baseline	4,962 ms	3,022 ms	-39.1%
MaterialIcons_outline	5,321 ms	3,078 ms	-42.2%
MaterialIcons_round	6,477 ms	3,795 ms	-41.4%
MaterialIcons_sharp	4,468 ms	2,663 ms	-40.4%
MaterialIcons_twotone	6,682 ms	3,989 ms	-40.3%
SWMIcons_outline	2,526 ms	1,487 ms	-41.1%
SWMIcons_duotone	2,678 ms	1,543 ms	-42.4%
SWMIcons_curved	2,417 ms	1,431 ms	-40.8%