FYI: Support for Vaadin 15 example

[markhm]

I've just been playing with app-layout-addon/ and made it work - for my use case - under v15, see my fork and my changes in the last commit.

In particular, note that in AppLayoutRouterLayoutBase, I had add @CssImport(..) at the beginning of the class, because the following line does not work:

attachEvent.getUI().getPage().addStyleSheet("./com/github/appreciated/app-layout/app-layout-styles-lumo.css");

This workaround deactivated support for Material theme.

Hope this helps.

[Skyleiger]

With your solution my theme is a little bit stucky. I have no shadows around the login overlay and the menu text color is black and not blue like before. Do you have the same issue?

[markhm]

Hi @Skyleiger. Yes, unfortunately, I have the same. More work is needed for the full upgrade.