HTML formatting, also set initial viewport scaling to 1.0 -mostly for mobile!
use 'hold' instead of touch down for taking pictures in static mode - this won't conflict with swipes
also adjust hold threshold to make it a bit faster than the default 500 ms
display "swipe left or right" message over the processed image and fade it out after a while
display elapsed time while recording
don't allow to add more frames while rendering!