I'm assuming that's cookiezi's skin you're using based on the picture.
To solve your problem, there are a few ways you can get around without your request:
1. Pass the map once with no fail mode, then use fun spoiler to change the note colors (you have to change the skin's note color in skin.ini first if you have any preferences, or it would apply whatever the skin is currently using).
2. Most likely you removed the map's BG in the past (or the map is just really old and doesn't have a BG). In this case, you can just switch playfield.png in your skin folder to something that's not plain black. The dark note color won't be so hard to see this way, but the map's base color might still cause some problem.
theowest wrote:
or just not delete the BG in the first place.
You can get banned for doing that now if you are caught, so don't do it! >_<
Basically no support from me, and hope my suggestions helped you.