docs: should styled-components be mentioned in Customizing components?

[dandv]

At Customizing -> Components - 3. Specific variation, should the Styled components API be included?

It's also not quite clear if that API actually uses styled-components (with the bundle size implication, though I don't see that in package.json), or only uses its syntax.

[oliviertassinari]

No, styled-components is an external dependency, for now.

[dandv]

The example reads import { styled } from '@material-ui/core/styles'; and I don't see styled-components in the package.json?

[oliviertassinari]

Different implementation