During the 12th month (checked during script initialization), draw a Santa hat
on top of the idle message's logo.
Slightly refactors and optimizes the drawing process as well: reorder original
logo layers and remove redundant holes in them, use a shared line prefix
to clear the style and set start position.
Signed-off-by: wm4 <wm4@nowhere>
TheAMM
6d93e4cb22