feat: add Char Test screen and extend Lemon font to Greek/Cyrillic

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- Add CharTestScreen showing sample characters from 11 scripts
  (PL, DE, CS, FR, NO, HU, HR, TR, LT, Cyrillic, Greek) as raw
  UTF-8 to verify native font rendering without transliteration
- Add "Char Test" entry to ToolsScreen menu
- Regenerate LemonFont.h from lemon.bdf with full U+0020–U+04FF
  range: 1074 BDF glyphs + 174 placeholders, 4111 bitmap bytes;
  adds Greek (137 glyphs) and Cyrillic (256 glyphs) coverage;
  also fixes space advance (DWIDTH=5, was BBX+1=1)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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This commit is contained in:

Jakub

2026-05-17 23:34:44 +02:00

parent dbda484f2b

commit 50eb58c276

5 changed files with 1516 additions and 358 deletions

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src/helpers/ui/LemonFont.h

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