Changing the Theme / Outlook of your Coppermine Gallery
This is done in the Theme Settings tab, Expand it to see all the features:


Theme - you can select the theme you want your Coppermine gallery to use from the drop-down menu as shown on the screenshot.

Coppermine stores its templates in a folder called 'themes'
Display Theme list - If enabled, this option will allow your user's to choose a template to use.
Display "reset" in theme selection - this option is applies only if Display Theme list is enable. It will display a default list, which will allow your user's to go back to the default template of your Coppermine gallery.
Display FAQ - The Display FAQ option adds an "FAQ" (Frequently Asked Questions) link on the frontpage of your gallery. This will allow your gallery users to get familiar on how Coppermine works.
If you wish to change the contents of the FAQ section, you will need to edit /your_coppermine_folder/lang/yourlanguage.php (where yourlanguage.php is the language your gallery is using - e.g. english.php)
Edit the contents after the
Name of your custom link - this option will allow you to create a custom link on the FrontPage of your Coppermine Gallery. Note that this option is only for setting the name of the link that will be
displayed (e.g. if you want to set a link for your forum you can name the link Forum)
URL of your custom link - this is where the actual URL for your "Name of your custom link" should be. (if we take the forum example again it would be something like http://yourdomain.com/forum).
Path to custom header include/Path to custom footer include - both of these options allow you to add custom headers and footers to the template of your gallery. Note that you should put the relative path to the header/footer files for these options.