Source Serif 4 Type Proof

Vendored TTF files from systems/v4/assets/shared/fonts. This sheet renders the face directly, compares the current Google Fonts file, then shows common fallbacks.

Google Fonts Identity Check

Current Google Fonts CSS

The current Google Fonts endpoint serves Source Serif 4 v14 TTF files whose internal names are Adobe SourceSerif4 version 4.004.

Family URL: fonts.googleapis.com/css2?family=Source+Serif+4:opsz,wght@8..60,400..700

Vendored Files

The vendored files in this repo match those Google-served TTFs byte-for-byte for 400, 500, 600, and 700.

400 8ca4d603... match 500 ab7df847... match 600 3f471d65... match 700 00441a2f... match

Source Serif 4 Weights

Source Serif 4
Weight 400

Caldura

Caldura Capital

C G S c a d u r 012345

Source Serif 4
Weight 500

Caldura

Caldura Capital

C G S c a d u r 012345

Source Serif 4
Weight 600

Caldura

Caldura Capital

C G S c a d u r 012345

Source Serif 4
Weight 700

Caldura

Caldura Capital

C G S c a d u r 012345

Locked-Proof Wordmark Style

Caldura Capital

Caldura AI

C Terminal Comparison

Vendored Source Serif 4 500

Caldura

Google current Source Serif 4 500

Caldura

Georgia 500 fallback

Caldura

Times New Roman 500 fallback

Caldura

Runtime Font Check

Loading font status...

Loading width metrics...