I can also see, why this is not a bad choice for touch interfaces. However, at the same time, this also illustrates, why it may be not that great a choice for

I can also see, why this is not a bad choice for touch interfaces. However, at the same time, this also illustrates, why it may be not that great a choice for a WIMP interface: the kind of "intimacy" related to the specific mode of interaction is essentially different. Where contrast and too much of variety may be irritating for a touch interface, it may be already too low in contrast and information density for a WIMP GUI. On the other hand, visual grouping (and semantic collapsing of groups) is much more important for the more remote WIMP interface, whereas touch already is much more locally focused. Generally, treating them both the same isn't a good idea.