In the linked markup, the difference between the bookmark star when the page is bookmarked (vs not bookmarked) is that the star is filled in grey rather than an

In the linked markup, the difference between the bookmark star when the page is bookmarked (vs not bookmarked) is that the star is filled in grey rather than an outline. I think this is a subtle design problem that doesn't easily show "bookmarked" vs "not bookmarked" state. I think users may have come to expect the typical yellow star when bookmarking a page. Usually if I want to bookmark a page I glance at the star to see if it's already bookmarked, and the outline vs. grey states don't make that clear.