We could also add :

• the "star" bouton on the search page (and it could be a filter too)
• a link on the right-click menu

As a first step, make simpler to star a map, so let's think to a better place for the star/unstar button.

I've just checked By default the Favourites button doesn't appear

What should we display near the icon when there is no star ? Nothing ? 0 ?

Seems a bit floating like that, no ?

What about something like that ?

Yes, I imagined writing star 0 and displaying ‘Bookmark the map’ on hover.
For greater stability, I'll align the elements on the left, and the info icon on the title :)

In images and on Figma (Legends page - Add favourites) :

I find that Adding the text makes the top of the panel quite heavy : If you want to highlight this action more, we could also do this :

what do you think ?