As so much of part and assembly modeling relates back to the origin planes, I have always thought the Origin folder icon should stand out from the crowd. This is especially true when part modeling with a long feature tree, as folders cannot be used to limit the length of the tree.
It would be excellent if you could choose a more distinctive colour for the Origin folder icon. Even better if one could access the folder from anywhere in the feature tree with, for example, a right click option.