I decided to change something that hasn't changed since Stickman 1.0. That's three years ago! What I wanted to do: Let the user choose tool action by right-clicking in the work area.
The problem was that, for example in matrix tool, the right+drag was used to rotate. So I had to rewrite all tools to use the new standard. From now on, the user will only use the left mouse button in a tool. Notice the icons on the left side of work area are removed and put into the right-click menu.
Another new feature is snapping. Snapping is turned on by default, you can turn it off by right-click and uncheck 'Snapping On'.