Fix demo app arrows to be title color

[RobbieTheWagner]

When we have a title to the tooltip, we should match the arrow color to the title background color.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.