Very nice! I was messing around with the sprite editor and map editor trying to fake this in stock PICO-8, but this is exactly what I needed for what I was doing :D
PICO-8 fillp tool
A little helper tool for generating fillp patterns.
Output is provided as hexadecimal sum (most compact), binary sum (easiest to read), and decimal addition (verbose; matches PICO-8 example). Click on output to copy to clipboard.
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This is great and VERY useful - thanks for creating it! :D
If you're at all looking for feature suggestions - it'd be great if this also allowed you to pick colours and set the transparency option, as this is the bit I tend to get stuck on!
Thanks for the feedback! I'm not sure what the UI for the transparency would look like, but I added a colour picker.
In the meantime, you can copy the binary output and add .1 to get transparency.
Fantastic tool, will definitely be making use of this a lot!
I made a similar tool!
but never thought on using hex values. That's great :D