Nope. It actually draws on an image. I think I've put in most options that I want / need now.
Next steps are a horizontal index / values, a legend, and support for bars and missing data marking, as well as datetime stamps and different font sizes. Still some things to do then, I guess...
It currently uses an integer table with a variable number of columns, and it's possible to specify outputs with a formatted string like "<#.##xx" which means something like: 'throw away the last two digits, and insert a dot at position number 3'. Effectively translating 123456 to 12.34. This way I can (ab)use ints for the whole range... The whole background and reason is a bit complex and has little to do with the code itself. I just went overboard
