In the following simple artwork, the top most stroke and fill are selected. in the layers panel, the target button is filled for the selected artwork due to additional stroke and fill.
Now if I drag and delete the filled target button from the layers panel, the button gets blank and the bottom most stroke and fill gets removed from the appearance panel and the artwork. Alright, cool.
My question arises when I tried to remove appearance attributes manually that is by selecting both bottom most stroke and fill from the appearance panel then delete it,
the layer target button still is filled after deleting, indicates additional appearance attribute or effects are applied, (actually isn't.)
Moreover, for this reason, the "object>expand" is dimmed for this simple artwork and "object>expand appearance" is active, making things confusing.
shouldn't the target button be blank in the layers panel after deleting the extra stroke and fill manually from the appearance panel? What am I missing? (All the transparency is set to normal and opacity is default for every appearance attributes).