I decided to go with a more "minimal" styling which I thinks work better for most webapps. I also decided to go with a more traditional menu structure because of the nature of a font editor. Both the tool palette and palettes on the right are quite WIP. I haven't decided on a default set of tools or palettes yet. The glyph chooser at the bottom will be expandable, and be subset with filters.
Anyway, thoughts on this mock up would be highly appreciated. :)