Hi muller,
Yes. That would be the next step of evolution i guess. We haven’t started the process to redesign the icons yet. The last two years of work was to add the icons at all.
Bforartists is open source, and “somebody” could be you. We are happy about every helping hand 
In case you want to have a crack at it, the icon sheet can be found in the Bforartists repository. The blender_icons.svg with the single icons can be found in the release/datafiles/ path. You need Inkscape to modify the file. To add the changed icons into the software requires some further changes at the source code, and compiling it then. But this task could be done by somebody else.
Kind regards
Reiner