At the end of the day, it's his project to license :)
Licenses that require the output to have attribution? I've honestly never seen it before. Next we'll have fonts that require attributions.. The closest thing I've seen is some programs stipulating the output must not be used for profit. Maybe horrifying is hyperbolic, but it's honestly quite sneaky ... and I'd never notice something like that. CC BY-SA 4.0 isn't really a code license.. and if I saw that I'd not even be sure what that means. My initial impression was it'd mean you can copy, modify and redistribute the source code - as long as you attribute it?
"or even produce your own from first principles"
Not a bad idea though probably not so straightforward. Doing a quick websearch, I'm surprised nobody seems to have reproduced it
EDIT: Searching a bit more.. it seems people just use these colors without attribution :/
Licenses that require the output to have attribution? I've honestly never seen it before. Next we'll have fonts that require attributions.. The closest thing I've seen is some programs stipulating the output must not be used for profit. Maybe horrifying is hyperbolic, but it's honestly quite sneaky ... and I'd never notice something like that. CC BY-SA 4.0 isn't really a code license.. and if I saw that I'd not even be sure what that means. My initial impression was it'd mean you can copy, modify and redistribute the source code - as long as you attribute it?
"or even produce your own from first principles"
Not a bad idea though probably not so straightforward. Doing a quick websearch, I'm surprised nobody seems to have reproduced it
EDIT: Searching a bit more.. it seems people just use these colors without attribution :/