There should be a gameplay mode where 300's, 100's, and 50's aren't shown, but rather a dot for every single note (regardless of whether 100 or not) like the one I use for '100' in my skin 
This dot will be colored (from a 3-color spectrum) by the timing of the player hitting the note. For example, if green is early and black is on target and red is late, the player will have a much better idea of his timing while playing a map with, idk, streams or something (cuz aint nobody got time to look down at the error bar).
Since this would give an advantage to gameplay, it shouldn't be ranked, but it would be amazing for practicing maps or getting used to streams.
Also pls make it with an adjustable color spectrum for all three colors if implemented.
This dot will be colored (from a 3-color spectrum) by the timing of the player hitting the note. For example, if green is early and black is on target and red is late, the player will have a much better idea of his timing while playing a map with, idk, streams or something (cuz aint nobody got time to look down at the error bar).
Since this would give an advantage to gameplay, it shouldn't be ranked, but it would be amazing for practicing maps or getting used to streams.
Also pls make it with an adjustable color spectrum for all three colors if implemented.