[experimentsin]

Optimisation colouring was one of the Harlequin Dylan features I was most proud of having a hand in back in the day. Did anything like it ever get implemented in a more mainstream IDE?

We only implemented it for static optimisations I think (i.e. you could see at a glance how well the compiler had inferred types, resolved method calls, inlined functions, etc), but we had a lot of ideas at the time around its future application to profiling results, as well as layered, more interactive presentation.

It'd be a great addition to Light Table...

[yetfeo]

I don't know of other IDE's that use the idea. It's a pity as I used this feature a lot when using HD/FD.