convert\
-filter point -resize 1260x580\
- -background white\
+ -background '#1a1a1a'\
tmp-qr.png\
-size 1260x120\
- -fill black\
+ -fill '#dad9d9'\
-gravity south\
label:"$url"\
-append\
- -bordercolor white\
+ -bordercolor '#1a1a1a'\
-border 10\
"$filename"