Paint Brush Change Size Shortcut

[PaulHax]

Would be nice to change the brush size without using slider.

How?

• hold down key and move mouse up/down?
• right click with mouse and move mouse up/down?
• Key "+" or "=" increase brush size, Key "-" decreases

[floryst]

For mouse wheels or touchpads, modifier + scroll is a relatively intuitive way. Otherwise, what does other software do?

A note for modifier + mouse move: chances are we will need to grab a pointer lock for this functionality, since we're changing the mouse movement into radius.