Icon Picker: Improvements, OOTB Property Editor, etc...

[markadrake]

Recommend some changes to the existing icon picker:

• Allow categorization/differentiation between the Umbraco defaults and icons added from other packages.
• How can we define synonyms for icons to make them easier to find in search?
• Expose the icon picker as a property editor that can be used as a data type.
  • Preconfig values:
    • Toggle color visibility (default to black if not visible).
    • Set default color. (Works with/without colors being visible)
    • Set default icon.
• Consider adding an optional icon override to the "block appearance" section once exposed as an OOTB property editor.

[mistyn8]

https://github.com/glombek/umbicosaurus from v8 days...