[Observium] Changing graph colours to improve readability

Hi,

I'm just wondering, has anyone dabbled with getting rrdtool to use more contrasting colours for composite graphs? We have some graphs, such as peering graphs, that are made up of 15+ components, and each component is currently a nearly identical shade of green or purple, which means that even with the legend enabled it is very difficult to see which component is which.

I'm imagining that instead of using shades of green, you could use a rainbow of very distinctly different colours and readability would improve.

I'm interested to hear whether anyone has tried to do this before, or if it's a non-starter for some reason.

Thanks,

Chris