@m4u9 Happy to! Join us on gnome-design on Matrix/IRC maybe?
My main suggestions would be to stick to the more balanced base shapes we use upstream, and use shading more consistently across icons.
For example, the battery and displays are shaded like 3D objects, but the simple square icons don't have any shading at all. Upstream we use the shiny "chin" on icons like that to keep them grounded in the physical metaphor (but also, we try to have unique shapes wherever possible).
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