I want to define all VaadinGrids in my Application with the component variant GridVariant.LUMO_ROW_STRIPES. I don't want repeat the definition on all grid instances as shown below.
grid.addThemeVariants(GridVariant.LUMO_ROW_STRIPES);
Is there any way to do this with a global configuration or something else?
I have tried so far to use the @Theme Annoation to define a theme variant. But this doesn't work.
As already mentioned in the comment, one approach is to create a subclass of Grid, apply the variant to it, and use it instead of the Grid class in your app.
Another option is to apply the CSS with which the variant is implemented to the Grid in your own theme. It's only 4 lines of CSS: https://github.com/vaadin/web-components/blob/master/packages/grid/theme/lumo/vaadin-grid-styles.js#L312-L316
Just remove the [theme~='row-stripes'] parts from the selector, and load that css into the Grid's shadow DOM e.g. by placing it in themes/your-app-theme/components/vaadin-grid.css