1) The fact that the drag tool needs to use Alt + right click + drag, this Alt + right click picks another color on the area where I try to change my brush size. That's annoying because I need to re-pick my previous color I was using. For this case I suggest that holding the right click while you're pressing "Alt" should not pick a new color, unless you release this right Alt + right click.
2) After Alt + Right Click + Drag nothing happens, nothing but picking a new color and showing my current brush size

I know some people are able to resize, still picking colors, but anyway resizing using Wacom tablets, but I'm using my Gaomon PD1560. I hope you read this, and give me a hand. This program is so great, and I love it, but this affects my workflow and I'm using it only when I'm not working but "trying" all cool stuff on it. Thank you in advance.