That's totally correct! I once replaced some blurry scans from the 6502 manual by SVG versions, and, while I was at it, I coded them by hand (really, because for this particular job it seemed easier than doing it in a drawing program.) While nobody will notice, it's satisfactory.

[1] https://www.masswerk.at/6502/6502_instruction_set.html#stack

Nobody will notice, because that's how it should be... personally I often notice when it's bad: blurry plots, JPEG noise that should not be there, and so on, and think "oh no, another one who has no idea about how to do images properly..."