Hello where its the option to erase - remove the color on vertex paint (New Mode ) 3.2 Alpha? : r/blenderhelp
Selection in Texture Paint & Vertex Paint mode - User Feedback - Blender Developer Talk
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GitHub - Philipp-Seifried/Blender-Normals-To-Vertex-Color: Simple Blender 2.8x addon that copies a selected object's normals to its vertex colors. Useful for some shader tricks.