I have the same items in red and I don't have any databases only the defaults when I installed XAMPP.
I don't seem to be able to find an 'Engines' selection in the top row of phpMyAdmin, could you point me to where you see this message?
Have you checked that your Joomla version is compatible with the versions included in XAMPP?
The version numbers can be found in the readme_en.txt file in the xampp folder.
I have installed XAMPP in a catalogue:
Have you moved XAMPP to another location or have you more than one XAMPP installation?