
It's recommended that you set your project balloon options such as color, text size, etc. in the "Ballooning Options" window.
To open the Options window:

The Balloon Appearance toolbar can be used to update the balloon
settings that are currently saved in the "Balloon Options" window, but
there are a few things to keep in mind when using the toolbar:
You will need to be sure that no characteristic is currently selected
when you make the change, otherwise, the change will only be applied to
the selected balloon:
To update all future balloons through the toolbar, "deselect" the
current balloon, then make the changes in the toolbar. You'll be
notified that the changes will be applied to all future balloons:
