Another way to remove part of the top layer of paint: Lightly coat edges and corners with petroleum jelly before spraying on the paint. (Brushing or rolling would smear the jelly all over.) After the paint dries, rubbing a shop rag over the item removes the paint wherever the jelly was applied.
Work carefully, dabbing on very little petroleum jelly, stained this table with Varathane Kona first. primarily on corners and edges. We
Roll the rag as you work to prevent the paint from discoloring the freshly revealed edge. If the paint doesn’t remove easily, buff lightly with 150-grit sandpaper.