Having buttons to change the size of a brush by one number increments to help ease accuracy for selecting a specific size.
It is too hard to only be able to select along a scale that firstly doesn’t even have numbers along the side to help give gist of the size being selected AND secondly, it no longer shows the size-number being selected when you single press a spot along the scale; meaning, you HAVE to GLIDE the notch in order for the numbers to show for what size your brush is and it is NOT EASY to get the notch set at an exact number other than 0 or 100 (even 1 and 2 are too hard to select frustration free)