This is a scrennshot you see at last event Dec 2018. Startscreen is "Nach Jahr".
There is no chance to switch on 2019 or see more events after Dec 2018.
When i go to "Nach Monat" i can switch from month to month. But that is not what i want.
You could create a template override and add it to your previous view?
You could create custom CSS over rides to style the Flat theme
Or you could joint he silver club for the flatplus theme which allows colour styling from the configuration.