Feature request: Rotate shape interactively with right mouse button (like paint.net)

[Trebieno]

(I'm use deepseek for translate. I from Russia)

i'm using Pinta on Kubuntu and really missing a crucial feature that exists in paint.net.

Steps to reproduce the frustration:

Draw a shape (e.g., a triangle) using the shape tool.

After the shape is placed, I want to rotate it interactively by holding the right mouse button and moving the mouse – exactly as paint.net allows.

Current behavior in Pinta:
There is no way to rotate a shape freely with the mouse after creation. I have to use transformation tools or layer rotation, which is cumbersome and not intuitive for quick adjustments.

[Trebieno]

In paint.net, after creating a shape, I can click on an empty area to deselect it. In Pinta, this doesn't work – the selection stays active. It would be great if you could add this behavior.