It's a tool dedicated to the construction of rasters (for Atari ST only at this point).
You can export the result in CSV, generated code or raw data as you wish.
Hope you will appreciate it (for the 4 developpers on earth interested

Microsoft Store : https://www.microsoft.com/store/apps/9N52P0RM4GVM
Youtube : https://youtu.be/aDYlDO2EoBg