You can change the default font style at the map level, along with the font size and color, in the upper menu.
Besides, you can also pick a color scheme for the journey map stages in the same menu.
Go to the upper menu, hit the “Appearance” icon, pick the settings, and hit “Apply” once you’re done.
That’s it!
Note: You can also change the formatting on the stage/substage or section level, and individually for each tile.