As a note for expressions and batch exporting: This is a very powerful tool, but I'd like physical features/colors to be preserved across expressions (even with just a toggle for it). Having to define the character's already-chosen colors for iris/brow/lashes/lipcolor/etc across every expression before exporting the batch is tedious and could be automated since physical features like shape and color are usually consistent across expressions.
Looking forward to continued improvements! Work hard!