(30-10-2020, 01:28 PM)vain Wrote: Would it be possible to do “square” pixels?

For sure. I actually initially planned to add a '--small' option to the converter to use "▀", "▄" and "█" but decided I'd wait until I actually need it (maybe a bored afternoon project). The block I printed above is also "square pixels", just using the whole-block character ("█") for the foreground. This is equivalent to the first example in your post that uses just spaces, except this of course uses a foreground colour rather than background colour.

Figlet fonts just store a 2D array of characters (like the 6 above for the chars in 'nixers') for all of the characters in the font, so pretty much any characters can be included in them.