Case accessories for portable electronic devices are disclosed. An embodiment of the invention may comprise setting for each pixel in a pixel array one of a plurality of integration times and one of a plurality of signal gains, wherein the settings may be used to generate corresponding digital data for each pixel in the pixel array. The textual content may include predefined hints, a text mark, or end-of-phrase punctuation mark. In one embodiment, the drag reducing system can be folded and collapsed for compact storage.