very simple autoaction to fix jagged outlines when resizing raster image
👍^ • ⩊ • ^₎

how to use
1. change line color to black, then merge with white background.
2. run the autoaction
3. adjust gaussian blur until the jagged outline isn't too visible

4. adjust the levels slider to left for thinner lineart and right for thicker lineart. keep the three sliders close to each other

5. white background automatically deleted. make adjustments to the finished lines to your own liking.
