LUTs as Picture Profiles
The FX30 lets you upload custom LUTs (look-up tables), with a choice of how they're then used. The conventional option of using them to give a more comprehensible 'corrected' preview while shooting Log footage is the first option, but there's also the ability to apply the LUT as if it were a Picture Profile: applying the color and tone adjustments of the LUT directly to the footage. Essentially this means you can upload custom 'looks' into the camera and apply them directly, rather than having to apply the LUT as part of the editing process. Working this way reduces flexibility at the edit stage but also lets you output footage with your preferred look already baked in.