On my side I tried right click on the numbers, STAY clicked, then move to right or left will change the 0.0x only, but not by 0.01, but by the length I move the mouse which can be around ~0.03 average
But my mouse barely coast $2 or $3 (it's a cheap PS/2 which lack dpi for precision, but on the other hand it's her who gives order to the CPU... unlike USB )
If your mouse has high dpi you should be able to increment by 0.01
From https://docs.gimp.org/2.10/en/gimp-tools.html
Left-click + drag changes a value with a default increment.
Shift + left-click + drag (or right-click + drag) changes a value with a smaller step .
Ctrl + left-click + drag changes a value with a larger step.
But my mouse barely coast $2 or $3 (it's a cheap PS/2 which lack dpi for precision, but on the other hand it's her who gives order to the CPU... unlike USB )
If your mouse has high dpi you should be able to increment by 0.01
From https://docs.gimp.org/2.10/en/gimp-tools.html
Left-click + drag changes a value with a default increment.
Shift + left-click + drag (or right-click + drag) changes a value with a smaller step .
Ctrl + left-click + drag changes a value with a larger step.