Apply theme vars to common/EmphasizedNode

[yurishkuro]

Part of #1911

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.92%. Comparing base (6d22b3e) to head (e625db2).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3191   +/-   ##
=======================================
  Coverage   97.92%   97.92%           
=======================================
  Files         260      260           
  Lines        8142     8142           
  Branches     2060     2146   +86     
=======================================
  Hits         7973     7973           
  Misses        169      169           

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