I should have thought of that! Excellent idea.
It can even kill two birds with the same stone... eg. for diagonal line stickers 1 and 2 in this sheet, you set sticker top red/silver/yellow, and add only fine grid details as texmap. And the colored sticker top can act as a fall back for non-texmap able viewers. This is another example where imho 0 !FALLBACK should be made optionnal, fall back geometry and projection geometry are the same.
It can even kill two birds with the same stone... eg. for diagonal line stickers 1 and 2 in this sheet, you set sticker top red/silver/yellow, and add only fine grid details as texmap. And the colored sticker top can act as a fall back for non-texmap able viewers. This is another example where imho 0 !FALLBACK should be made optionnal, fall back geometry and projection geometry are the same.