What do you think about this?
I made PR, but I don't know if this is good idea or completly bad one.
https://github.com/web2py/web2py/pull/1544
Of course, it must be used with additional settings inside model used in custom view,
like
<button class = "{{=response.css.mainbutton}}"></button>
where
response.css.mainbutton = 'btn red' # for stupid
response.css.mainbutton = 'w3-btn w3-red' # for w3
Regardless of your decision I want find some method how to experiment with different css frameworks (bootstrap vs stupid vs w3 vs ?),
this could help me a little.
But maybe it exists much better solution.
Because it is just in scaffolding app, I will have no problem if you decide reject this, because everybody can implement this yourself.
I mean just it would be nice to find some standard way how to do things.