at the risk of comparing totally different software, in TV Paint there are “magic” erasers that can erase certain colors in certain areas of the drawing and leaving other colors unaffected; very handy when working quickly with various colors to explore and refine drawings. i’ve found harmony 12 has some related functions, but it seems they’re not meant for selected/isolated PORTIONS of a drawing:
method 1) make the color current in the menu, then right-click > select strokes with current color, and then ALL uses of the color can be deleted in the drawing, but not from a selected, isolated area in the drawing, i think.
method 2) dial the color’s opacity to 0, but that affects EVERY use of the color “globally”, i think.
method 3) select/shift-click enough of the lines and then delete, which is a lot of selecting.
method 4) always use the sub layers. meh, always is a long time…
additionally, the bitmap nature (i guess) of TVP means that the ‘magic’ erasers can softly ‘knock back’ areas of the color, affecting its transparency and not deleting it in entirety, so a bit can be left remaining; very handy while constantly reworking a drawing and erasing the under color as needed. from what i can tell from harmony 12 thus far, vectors require a solid eraser tool, not soft/gradated; when the latter tool is chosen, the vector line erases only temporarily, then re-appears, requiring a solid, non-gradated eraser setting.