Add keywords and operators in searchbars

While trying to tweak my theme, I thought it would be nice to be able to search in preferences (which is already requested here: Search bar in Blender Preferences window ⁠— Right-Click Select ).

But the missing thing to make this even more powerful is being able to refine a search by the use of keywords and operators.

Keywords

Example of keywords that would make sense in the Theme preference tab:

• type:

  • color
  • checkbox
  • list
  • float
  • pixels

• in:

  • 3DViewport
  • TextEditor
  • Properties
  • basically each category/sub-category

This would allow you to filter precisely what you are looking for and where.

I.E if i want to search for color settings in the viewport with the "selected" title, i could type in the searchbar: type:color in:3DViewport selected

Operators

It would aslo be awesome to support simple operators + - .

I.E. if I want to do as above, but excluding items titled with "selected":
I can type type:color in:3DViewport -selected .
Which would return thing like Face Selected , Face Dot Selected , or Vector Handle Selected .

Or If I want only titles containing both "selected" and "face":
type:color in:3DViewport selected+face which would return things like Face Selected and Face Dot Selected but not Face or Vector Handle Selected .

While typing type:color in:3DViewport selected face would return any color property in 3D Viewport that has either "face" or "selected" in their title.