Better Management of the Appearance Panel
Appearance are the most powerful feature of Illustrator, but the learning curve is difficult and for Advanced User it's difficult to manage and remember what are doing what in a Complex Appearance (cf. Screenshot where I had to use Colors to identify properties…)
Adding features like:
– Renaming (fill, stroke and effects)
– Folders (like in Ps: "Pass Trough" blend mode, knockout, vector mask based on "Convert to shape" with 9 points proxy…)
It will be more easier to understand Complex Appearance samples and for Advanced users, it will be way more efficient.