This shortcut doesn't work for me and there is something weird in the preferences panel - right top menu disappeared.

Hi, thanks for the best painting app for macOS, at least for me. Faster and more sofisticated brush engine than Photoshop, it has an excellent "oil" wet blending system - on the same level perhaps better than Clip studio paint. Brush settings probably can't have more parameters than here.
Unfortunately, there is an unresponsive GUI behind all this, but I understand that your team is small and your priority is the ipad ios version.

I think, this improvements brinks better experience:
1. Possibility to move and close pallets, especially the top wide bar with document previews
2. Possibility to close all pallets (full screen mode)
3. Add a shortcut to dynamically resize the brush, ideally for the middle / right mouse button, because for example the Huion tablet still can't work properly with the modifier keys assigned to the pen buttons
4. This also applies to pan / zoom, on Huion tablet assigning a space / alt key to the pen button unfortunately does not work
5. Better response when scrolling in pallets with a tablet pen (now it's better with a mouse wheel)
6. Possibility to display the cursor only as a single dot (Clip studio paint reference)

Thank you, I wish you more Artstudio Pro users