Christian's leather patch art is the app icon at 180px and up. It cannot be
the favicon: leather grain and stitching turn to mud below 48px, and the
pulse is black on brown, which is not enough contrast in a tab bar.
So the set is two-tier. Sizes 180 and above come from the leather art;
16, 32, 48 and the .ico come from a flat source whose spike geometry was
measured off the original (left tail at 52% height, peak at 42% width,
trough at 54%, right tail at 84%). Same colours sampled from the leather
body, so the small mark reads as the same object rather than a different
logo.
make_icons.py gained --small-from for this: one command builds both tiers.
Signed-off-by: Christian Sass <csass@binaryranch.com>
