Whoa.
I was thinking of something like this; had the whole thing coded in my head, or at least how and when specific data moved between client and server/db. Having an optional oekaki input has been the Holy Grail of geekdom and art culture forums, Only phpBB got somewhere with a released mod…that crumbled with time, and the core’s constant advances at that moment.
Those traditional oekaki java applets will cease to load shortly; again, crumbling with time and in this case, closed-source code.
Any current reincarnations kept up to date are closed source (eg, Lascaux Sketch).
Searching for “oekaki” in my stars collection @github returns some attempts in JavaScript and HTML5. I hope they may help in some way to this data transfer and turn it into an actual image. That is where oekaki excelled.
(And as a clarification, I am not asking or expecting the grand Photoshop-like options or any multiple color choices the traditional setups were also known for. Gimmie a line on canvas. All anyone needs, I think.)