* 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>
I mostly did it so I could move tile mode logic into a new node, so I could have control over the drawing order. TileMode.gd also always draws 8 blank rectangles, which are being drawn on top of the grid, in order to hide it if it gets out of boundaries. We are now very close to implementing an isometric grid, #305.
This shouldn't have much of a performance impact, but some more testing is most likely needed.
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.
