Bootstrap with Sass compiler in WP Theme

It is possible to design a full website theme for wordpress with bootstrap?

I mean, using their “primary colors” etc… then allowing the user to change these colors and compile a new bootstrap css with sass when it’s changed, so it takes the colors of the user as default.

I would like to do this because like this I can add dark/light options easily and the skin looks great but I don’t really know if this is allowed? because when i add Scssphp to my theme, the envato theme check has a lot of warnings.

Then, I plan to add all this functionality via a required plugin but that is still allowed?

It’s allowed as long as you create the files properly ( you cannot use style.php file )
But the easy point to use css selector ( style=“dark-color font” vs style=“light-color font” )