FILIP VABROUŠEK
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Step 1:
Step 2:
Use shape builder
Step 3:
Select all -> make live paint, fill with color
Object -> expand -> check all
Object - ungroup
Apply gradient to one part of swirl
select all swirl , with eyedropper click non filled part
SOURCE: https://www.youtube.com/watch?v=98x71KwIYGU
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