@ Patrick
RE: using the customizer to modify default card template also changes the entries in my custom “mycard” template.
Odd, the only reason I can think this be the case is the slug or you are actually using the card template on the page instead of your mycard template. I only mention it because others have made a similar mistake. Is you mycard template the activated template? What is the exact shortcode you are using on the page set as the directory homepage? Have you enabled the Single Entry Template option? All of which can affect the actual template being used.
RE: I don’t know If this is correct, but anyway it doesn’t work.
No, I believe this is what you want:
require_once plugin_dir_path( __FILE__ ) . 'class.customizer.php';
The next update… I’ve made this change to the included Card and Profile template so it will not be an issue for other in the future.
