Irrelevant to the question asked and not to bright.... guess who just added to ignore list
Anyway I find it easier to just take a screenshot of the ingame menu and use it as an template. When I feel satisfied I cut it accordingly to the sidebar (buttons etc). It helps if your photo editing application can work with layers. The full process is just like when you work on any other shp you just keep track of where every button goes and so on. I wish I could give you more advice but I have only made 2 sidebars and my knowledge is restricted to that
