I'll be the first to say that I find most Holga/Diana-wana-be photgraphy cloying and twee and it's pretty rare that even the most earnest results feel like anything more than just a rehash of Nancy Rexroth's "IOWA." So you can imagine my reflex reaction to programs that deliberately "crappify" otherwise-clear, direct images, burying them under just so much mannered noise. And you'd be right, at least about my initial reaction. Why my attitude has changed in the next photorant entry.
In the mean time, since I couldn't find one that entirely suited me, here are a couple of guides to the color modes (and below, frame styles) offered as presets by the Android camera-phone program Vignette. A similar chart can be found here, but it was missing skin tones).