I have been using wick editor for a few weeks, and I find it frustrating to keep on moving my hands around the keyboard trying to find the keybinds for all the tools.
My suggestion is to add an option to customize the keybinds in settings. (ex. You can change brush tool to 1, pencil to 2, etc.)
Hopefully you can add this as it would be easier for intermediate Wick users to quickly change between tools.
Tallow.