GitHub link: https://github.com/steffest/DPaint-js
Looks like it centers around the canvas object and a bunch of divs pretending to be widgets. I found this interesting as well, from the readme:
It is written in 100% plain JavaScript and has no dependencies.
It's 100% free, no ads, no tracking, no accounts, no nothing.
All processing is done in your browser, no data is sent to any server.
Also looks like this was cranked out in ~6 months or so (with a big gap in the middle), impressive.
The entire application is something of 400 to 450 in, and that includes all the colour reduction/dithering stuff and the reading and writing of those weird binary Amiga specific file formats.
> 450 in
Inches? I would have expected kb perhaps.
If the code is well written, is should be no problem and actually be easier because there are no framework you need to keep in pace with.
> DPaint.js doesn't need building.
Was not included in the quote above but it is equally rare!