How would stacked graphs work though? Sure they would look cool, but I'm thinking it would be harder to implement. The reason for this is simple: for it to have the visual effect you guys are imagining, Each gametype would need to work on a principle similar to layers, meaning one gametype would have to be dominant over the others. I was thinking long and hard about stacked graphs, since I agree, they would look cool. However, I'm sure a situation like this could arise:
(Note that in Remco32's example, osu is the dominant play count, but the effect would only be more magnified in that case)
So, if this were to be the way to go, how could this be effectively implemented accurately? One thought I was thinking of was to make each gametype a different width, which would solve the potential problem of masking.
Using the above example, with Taiko as the top layer, CtB as the middle and osu standard as the bottom layer imagine osu standard is the same width it is now. CtB (the middle layer) could be 1/3 less wide, centred or positioned to the left, and Taiko could be reduced by 1/3 again, in the centre or positioned to the left.
I think it would look similar to this:
Personally, I think it would look a lot cleaner if they were displayed separately, however, this example demonstates the possibility of a stacked graph.
Feel free to discuss whether this is more suitable or not, any more ideas are welcome
Not sure if historical data currently exists, but I'd love to see this at least for future data.