* Theme edits
Changed all the themes to be more consistent, buttons and panel containers have rounded edges. Note that the spacings have been switched too, so it needs subtle remakes in the placing of each element. Especially the tool buttons. Also check the themes on preferences (need better spacing) and rulers are not included.
* Some UI fixes
* Reduced size of themes
* Fixed more spacing issues and replaced timeline grabber icon
* Removed old theme icons
* Change purple and light rulers
* Fix purple top menu & caramel rulers
Co-authored-by: Erevoid <Erevoid@users.noreply.github.com>
Co-authored-by: OverloadedOrama <35376950+OverloadedOrama@users.noreply.github.com>
A Project class contains project-specific data like name, undo_redo, frames, layers, tags and brushes. These variables have been moved from Global. This is the first step towards multiple tab support, where each tab will be a different Project.
The Canvas is now single node, instead of having multiple canvases for each frame. This should also be a performance optimization, since there are less canvas nodes, so there are less _input() calls. It should also fix a rare Undo/Redo issue with motion drawing and making lines. Could be unstable, needs more testing.
As a side effect, the guides are now the same for all frames, so this should also close #246.
Replaces nested Global.animation_tags arrays. Also replaced array.duplicate(true) with looping through the array and creating a new class for each array element, because duplicate(true) does not create new classes, unfortunately, which was causing issues with undo/redo.
Moved code from Global.gd and Canvas.gd to DrawingAlgos.gd. Will also move the fill_gaps and draw_brush methods of Canvas.gd next. Maybe even refactor the inside of them a bit to make them easier to read.
Removed separators entirely. Also made the AnimationTimeline have a StyleBoxFlat of its own, which we use to expand its margin top to cover the little space left because of the VSplitContainer. We also use a TextureRect as a fake VSplitContainer grabber.
