Hello!
We used the Style Calendar addon in a Vaadin 6 project. Now we like to refactor it in Vaadin 14 but we don’t know is there any addon (or built-in) component to substitute the legacy one. We use the addon to show a year (the 12 month with the days on a page) to display the workdays and bank holidays for the financial users. Any help/hint would be great. Thanks in advance! 
Károly
Don’t know, if it will be migrated (but I guess rather not, since it also not has been migrated for Vaadin 8).
You could try one of these addons instead, maybe they work for you, too