Possible documentation clarification: Type selectors won't see import aliases

[davep]

I wonder if it's worth adding a note/warning/something to the documentation, when dealing with type selectors, to the effect that something like this won't work:

from textual.app import App, ComposeResult
from textual.widgets import Label as MyLabel

class AliasTest( App[ None ] ):

    CSS = """
    MyLabel {
        text-style: bold;
        color: yellow;
        background: red;
    }
    """
    def compose( self ) -> ComposeResult:
        yield MyLabel( "This is a very important heading" )

if __name__ == "__main__":
    AliasTest().run()

Textual's CSS isn't going to see the alias of Label being MyLabel. I could see this being a little gotcha that might trip someone up.

[willmcgugan]

Good point, but AFAIK it is not a common error. Unless devs are tripping up on that I think we can leave it.

[github-actions]

Don't forget to star the repository!

Follow @textualizeio for Textual updates.