* Create a custom PixeloramaImage class, initial support for indexed mode
* Convert opened projects and images to indexed mode
* Use shaders for RGB to Indexed conversion and vice versa
* Add `is_indexed` variable in PixeloramaImage
* Basic undo/redo support for indexed mode when drawing
* Make image effects respect indexed mode
* Move code from image effects to ShaderImageEffect instead
* Bucket tool works with indexed mode
* Move and selection tools works with indexed mode
* Brushes respect indexed mode
* Add color_mode variable and some helper methods in Project
Replace hard-coded cases of Image.FORMAT_RGBA8 with `Project.get_image_format()` just in case we want to add more formats in the future
* Add a helper new_empty_image() method to Project
* Set new images to indexed if the project is indexed
* Change color modes from the Image menu
* Fix open image to replace cel
* Load/save indices in pxo files
* Merging layers works with indexed mode
* Layer effects respect indexed mode
* Add an `other_image` parameter to `PixeloramaImage.add_data_to_dictionary()`
* Scale image works with indexed mode
* Resizing works with indexed mode
* Fix non-shader rotation not working with indexed mode
* Minor refactor of PixeloramaImage's set_pixelv_custom()
* Make the text tool work with indexed mode
* Remove print from PixeloramaImage
* Rename "PixeloramaImage" to "ImageExtended"
* Add docstrings in ImageExtended
* Set color mode from the create new image dialog
* Update Translations.pot
* Show the color mode in the project properties dialog
Another memory leak remains in Recorder.gd, where the first project forever remains referenced in memory, until the user changes the project from the option button. Perhaps we should remove that option button completely and always record the current project, that also sounds like the intended behavior to me.
* Add share config button
* fill parameter now saves with curve tool
* rename _fill to _fill_inside for sync consistency (fill in pencil and shape tools basically represent the same thing)
* add icon
* Move the option to the preferences
* Add string to Translations.pot
* Re-introduce `is_syncing`
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Co-authored-by: Emmanouil Papadeas <35376950+OverloadedOrama@users.noreply.github.com>
