hgrc: drop obsolete stuff from [alias], enable showfunc in [diff] The alias entry for diff (-p) is the same as [diff] showfunc = 1, but the latter will also do things like improve emails.

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"