* Blend group layers on `DrawingAlgos.blend_layers()`
* Support group layer blending on the canvas
* Allow editing of group layer properties
* Fix issues with group layer blending in canvas, and unite common code
* Group layers can now be used as clipping masks
* Make move tool preview work on child layers
* Change OffsetImage's `blend_layers()` to support group layer blending
* Support group layer blending in the canvas preview
* Fix layer blending mode, clipping mask opacity and cel opacity not being updated automatically if the layer/cel changed is not selected
* Add a pass through blending mode to layer groups
Fingers crossed that no bugs were introduced
* Fix issue with layers that belong to pass through groups not updating their textures on the canvas automatically on undo
A slightly breaking change for a minor update, but one that needed to be done. The bucket tool's "similarity" (now renamed to "tolerance") used to work the opposite way from all other software, the maximum value meant exact color match and 0 meant no color match. Now it works the inverse way to make it be consistent with other software, and the range is now 0-255 instead of 0-100. 0 means exact color match, 255 means no color match. And tolerance also now works for the "similar area" mode as well.
Thanks to https://godotshaders.com/shader/color-manipulator/
The shader has more options than just brightness and contrast though, but I didn't know how else to name the effect. "Adjust Brightness/Contrast" makes it immediately obvious as to what the effect is about.
* Add setting for Godots low processor usage mode
* Update name and description of low processor usage mode setting in preferences
* Fix a tiny mistake
This has no effect on non-Steam builds. Steam achievements are mostly for fun, but can also be educational because they can let users know of certain features and functionalities. It's using the GodotSteam GDExtension, but because I do not want to bloat the GitHub repository with things that are not needed for most builds, I decided not to include the GDExtension files, and instead check if the `Steam` class exists in `ClassDB`. The new SteamManager class pretty much does nothing on non-Steam builds, so do not worry about bloat.
In the future we could even take advantage of more of Steam's features, such as Cloud storage for pxo files.
* Implement Columns field of imported .gpl palettes.
- Fixes Columns field being ignored when imported.
- _fill_imported_palette_with_colors is modified to accept an optional
width parameter, which defaults to Palette.DEFAULT_WIDTH instead of
a hard-coded 8.
- A maximum of width of 16384 is enforced to mitigate maliciously large
values.
* Run gdformat.
* Run gdlint.
* Consume all whitespace between field and value.
* resolved issue where pixelorama_data folder is to registered on MacOS builds
* Reverted changes to workflows and added Mac Resource directory to search path for palettes
* format Global.gd with gdtoolkit
