Hi guys, Devin, Sam and Adam Ginsburg have done a lot of really great work on the colorbar handling. What I'd like to propose is that we take our existing gigantic routine and split it into a smaller handler function or class -- maybe something like RavenColorbar or YTColorbar. I'm willing to do this, but before I do I wanted to clear it with everyone. The way I am seeing it, the colorbar would be a wrapper around the matplotlib colorbar class, and it would handle some YT-specific stuff -- * Setting of datalabels, and knowing about units and so on * Setting of ticks for the sometimes pathological situations in which we find ourselves * Setting of ticks for the completely reasonable situations in which we also find ourselves * Intelligently plotting into axes * Notification handling (which is currently handled via a lambda for MPL 0.91.x compatibility I'd like to discard) What do you all think? I think having this as a base would be easier for invalidation of colorbars, which is where we're moving. The ultimate plan is to have a plot object and a colorbar object, and when certain actions are taken on either, one or both will be marked as "invalid" which would trigger a replot. This would be things like resetting the width, changing the limits, etc etc. Thoughts? -Matt