Ganerates a mosaic of factorio items from an input image.

go to https://dave5625.github.io/factorioMosaicGenerator/ (or unzip the mod and open mosaicGenerator.html)

drop a 24-bit Bitmap image there to get a generated string

the item resolution will match the input image, 1 pixel = 1 item

in mod settings set the output resolution for the screenshot

start a game of factorio, input the generated string in the text box, click the button

find a screenshot mosaic-output.png in %AppData%\Factorio\script-output