feat: Full theme css gen util

[pan-kot]

Issue #, if available:

Description of changes:

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.81%. Comparing base (bc65c82) to head (6549157).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #168      +/-   ##
==========================================
+ Coverage   97.57%   97.81%   +0.23%     
==========================================
  Files          48       48              
  Lines        2637     2649      +12     
  Branches      545      557      +12     
==========================================
+ Hits         2573     2591      +18     
+ Misses         64       58       -6     

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