How to change ButtonMatrix- background's color to transparent color?

[ttxs1002004]

@kisvegabor

It’s because of the accumulated rounding errors. E.g. full height is 98 px and there are 4 rows.Then one row should have 24 px height but then 4 rows has 96 px height. As a workaround I align the last row as it should be. If you have better ide I’m open to it.

How about API adjust the entire size to be ok, then draw the entire object? or the user shall use align size before display object ?