Remove remaining uses of SCALE24_TO_FLOAT and FROM_FLOAT macros which were only
used for SPIFloat and can easily be folded into the object itself.

Harmonize the default data type use with SPIEnum, SPILength and SPIFontSize
this allows the rendering engine nr-style.cpp to use the right rendering value
which is always the computed value and not need to think about the internal
implementation of the style variable between `value`, `computed` and will allow
these variable to be made private in the future.

Mikekov: Add `as_double` and `as_enum` getter functions for the new explicit interface.

Vaibhav Malik 创作于 4月 19, 2026 ，Vaibhav Malik 提交于 4月 20, 2026

* In the multi-color autotrace mode, max scans is used to set the
  `color_count` value. It determines the number of colors a color bitmap
  is reduced to. The allowed values are 1 to 256.

* The crash occurred because of incrementing scans value by 1 in
  multi-color autotrace mode while invoking setColorCount. Since, the
  maximum value allowed for the scan adjustment is 256, this'd result in
  color count being set to 257. Hence, resulting in a crash because of
  out of range value.

Fixes: #5475

Use boost intrusive multiset instead of std::list, now insert takes O(log n)
instead of O(n) with n number of items on canvas. Erase remains O(1).

No more memory allocation or failure paths on cache insertion
at the expense of slightly larger DrawingItem struct.

Ayan Das 创作于 1月 20, 2026 ，karliss1 提交于 4月 21, 2026

In 'transform_rotate', 'transform_rotate_step', and 'transform_rotate_screen' multiply the rotation angle by 'yaxisdir()' to ensures the visual rotation the action (CW vs CCW).
calculate the visual angle' relative to 'yaxisdir()' for generating the Undo History message.

Fixes: #5992

* Implement supersampling for CLI tests, allowing lower fuzz thresholds.
* Merge l2compare.sh into check_output.sh to reduce duplication.
* Always use L2 metric for fuzzy raster comparisons, not absolute error.

* Fix 09-text-layout.svg to add 'arabic' css class to some text that was
  missing it, use 'Noto Sans Hebrew' for hebrew text, and re-show some
  cut-off text. Update bundled Noto Sans fonts that it depends on.

* Fix test-store writing to source directory.

* Update reference images and adjust fuzz. Only significant reference
  image change is the peppercarrot one, where some previously missing
  text ("日本語") actually appears now.