Fix Note Tweaker: Override dot color

[ibillingsley]

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The dot override color was being shown in the preview but had no effect in game. This seems to fix it, although I don't fully understand the code, not sure if it causes any side effects.

The dot glow intensity slider still doesn't seem to do anything (unless set to 0), but I don't know how to fix it.

See https://discord.com/channels/723117082111246416/1210857445090402314/1210857445090402314

[hardcpp]

Hey thanks! i will test this weekend