convert $TMP \
\( +clone -background black -shadow ${OPACITY}x${BLUR}+${SHIFT}+${SHIFT} \) \
+swap -background none -layers merge -crop ${SIZE}x${SIZE}+0+0 +repage $PNG
convert $TMP \
\( +clone -background black -shadow ${OPACITY}x${BLUR}+${SHIFT}+${SHIFT} \) \
+swap -background none -layers merge -crop ${SIZE}x${SIZE}+0+0 +repage $PNG