We have a problem with graphics editors. There hasn’t really been an intentional application for designing user interfaces since, ever. Adobe keeps trying to make Photoshop for the web and UI design, and it keeps coming up short for me and probably for a lot of other people as well. But remember, Photoshop is about 25 years old. Also, since Photoshop is photo editing software, layout and typography are afterthoughts. A lot of things you’re looking for are still hidden or buried in layer styles.