[Selecting and transforming multiple layers]

Me again :> new little niggle to report on the road to the perfect painting software! - In other apps we're used to being able to select multiple layers via the selection tool and then use the transformation tool to edit those multiple layers at once without need for manual one by one processes. This allows for quicker iterative work and keeps the painting consistent throughout multiple iterations.

When we tried the same approach, it simply ignored the multi-layer selction and put the transformation box around the whole canvas- in one particular moment of experimenting, it culled the lineart layer of the selcted part from its mortal coil, and no amount of undoing brought it back, so the need to reload an autosave was utilized. 

Someone suggested to me to make a group, put the layers in it. duplicate the group. merge the layers in the new group. It is now one layer that can be transformed. Either keep or discard original group, and layers, depending on need.

Yes, still some missing features.  Another is to be able to open more than one document at a time.