Sleepyhead Overview colors?

I'm missing something... In the Sleepyhead Overview tab, most of the graphs are colored, which really helps to see changes. But the large leak and flow limitations are just in black and white. I stumbled around looking for a way to set colors, but can't find it.



Am I just missing something? Or does Sleepyhead not work that way?

Try changing the time frame to 1 week and see if you see some color.
I get a very faint color in large leak graph when I view at 1 week or 1 month but lose it when I zoom out.