Simple request: Please add a shape option of 'right-angle triangle' or make it a modification of the existing triangle shape.
On the subject of shapes, a rhombus would also be useful. This could be a modification of the existing rectangle/square shapes by adding a tilt-option.
You can make a right angled triangle by setting a height double the width in Kustom. But other shapes would be great! Just a polygon tool where one can set the number of sides perhaps?
The problem with that is using right triangles dynamically in a wallpaper (resizing, animating, etc). Since the right angle doesn't sit on the edges of the module itself it presents issues.