I've heard (and felt) that Phosphor 0.7.0 dev branch is much better than 0.6.0 and almost as good as Starlight, so maybe it may be a good idea to show Phosphor 0.7.0 in the graph either by editing the phosphor section or adding a new section for 0.7.0 and renaming the old one to specify 0.6.0?

When I was doing performance testing I had actually found that 0.7.0 made small regressions (10% worse) with respect to chunk generation performance. I had asked the devs about this, and they had replied 0.7.0 was more targeted towards reducing worst-case scenario performance.

I could tell locally that 0.7.0 had fixed the light engine problems crossing chunk borders, so 0.7.0 really did fix some worst-case scenario performance. I've plans to do more comparisons that highlight stuff other than generation.