RGB or RGBA color, or an index into graphics/rendering/settings/runtime-settings!RuntimeSettings.colorPalette.
A class with constructor
new RotatedRectangle(center: vec2, size: vec2, rotation: number).
center is the position in world coordinates; size is [width, height] in world
units; rotation is the angle in radians.
Pass the class's static descriptor to compile!compile, then pass instances to
graphics/rendering/renderer/renderer!Renderer.addDrawable.
Creates a drawable rotated rectangle class with a shared color.