| The best description for the role of this component I can come up with is: | 
 |  | 
 | Random utilities for building UIs. | 
 |  | 
 | ... that's kind of sad, since I like components that are focused on specific | 
 | purposes, but there always seems to be one of these gathering places in a | 
 | project and this is it. Specifically, code seems to be added here because it's | 
 | needed by more than one toplevel directory. | 
 |  | 
 | Over time, we should shrink this component and move focused, related items out | 
 | into separate components under src/ui (see previous examples in ui/gfx and | 
 | ui/events). | 
 |  |