Huion Pen PW100/H640P/H950P alternate button

If you find the button on the newer, battery-less Huion pens a bit too flat and lacking in tactile feel, you can use this button as an alternative. It's much more similar to the old Wacom Intuos 3 Pen button, with a slope and a thicker part for the upper, third button.
I'm very used to using this button as middle mouse button for scrolling and navigating, so a bigger, beefier button was my goal.

Works best when printed laying on it's side, with ample 1.5mm resolution support (suggest to add