Hello, is there a way to enlarge the buttons on the side? They are really very small with me. Unfortunately, it makes it difficult to use the functions.

uhu...
it IS possible but you need to chance it manually for EACH icon in the skin.lua file.
BUT this will also "stretch" the icon(s) and this will maybe look ugly!

You need to change width = 16 and height = 16 to example width = 32 and height= 32 for the icons you need.
All the Icons you need to change are in the section widgets in the file skin.lua

But as of the Icons are just 16x16 it is nor recommended at all!