For the effects window, you would simply change the
CellSize="20,20" in the VolumePage to
"30,30" and then change all the Icons (there's about 30) to have a Size, ScrollExtent, MinimumSize, and MaximumSize of "30,30"
You could probably just do a Search and Replace for "20,20" and replace with "30,30" in the whole file. That first mod has like 10 versions, so do it to the one you'd like
As for the Maintained window, you'd have to change all the Icon sizes from "30,30" to "20,20". But the text would still take up the same amount of space. You wouldn't really be able to change that unless you found a smaller font, and you would have to change all the Pages from Size="200,31" to a smaller size to line them up....