“Homescreen Widgets” wouldn’t really work, since SF “homescreen” is just a collection of open app cards. There was an attempt at one point to head in that direction, but didn’t really go anywhere (Lockscreen widget manager | OpenRepos.net — Community Repository System and others by @anig). I don’t sense there being too much interest among SF users…
As for icons, fonts, tweaks, etc., it’s wide open, even well beyond Android, etc., because you’re not dependent on specialty decode/rebuild tools, signature verification, etc., but you have to just do some research and some work of your own.
Theres:
- fontconfig for SF https://github.com/dumol/PixelPerfect
- Clockwork for icons Clockwork | OpenRepos.net — Community Repository System
- dconf tweak for dpi UI-Themer missing from OpenRepos - #63 by deprecated
- Theme Color for system colors Theme Color | OpenRepos.net — Community Repository System
- Personal tweaks/hacks to qml files, e.g. Button.qml:
- Many mods through Patchmanager, (much more than what you indicated)…
