Divide and slide-stretch an image using keyboard controls.
MOVE DIVIDER
h move ←  l move →  hold shift to move by 10
SELECT DIVIDER
d select ←  f select →  hold shift to select multiple dividers
DISTRIBUTE
e distribute selected dividers evenly across the selected area
ADD & REMOVE
a add divider  backspace delete divider
IMAGE
To add an image you can paste, drop, or press o to open a file dialog.
IMAGE SIZE
z decrease height  x increase height
c decrease output width  v increase output width
SPECIAL
w save as png  b dark bg  ? help