Martín Lucas Golini e9f074b1d2 Fix baseline alignment when rendering mixed rich-text fonts + Fix image diff button hit-testing and native pixel sizing ...

- Compensate for the difference between font ascent used by RichText layout
  and the character-size baseline used by Text rendering. Cache the natural
  baseline in each text span while preserving background and selection boxes.

- Add pixel-level coverage for proportional and monospace fonts at matching
  and different sizes, with default and explicit line heights. Refresh the
  affected rendering reference images.

- Keep diff view select buttons last in the child list so lazily created
  image viewers cannot intercept their clicks.

- Display source images and generated diffs at native pixel dimensions,
  independent of UI density, scaling down only to fit the viewport. Avoid
  rounding twice at fractional densities.

- Add regression coverage for mode switching and sizing at densities
  1, 1.5, and 2. Use portable temporary paths.

2026-10-05 00:57:39 -03:00

6.2 KiB

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