Hello: I installed a class calendar plugin, and in the editor I can not find a place to update the featured image, which shows up as a large gray placeholder. So there are two questions:

1. Where do I change this placeholder
2. Can it be smaller (200px highish)?

Here is a sample page:

Introductory Course: Relaxation & Meditation for Beginners

You all should still have the login from my last request, if not let me know. When you login to the account, the Dashboard has a section called Classes – this is the plugin I am referring to.

I realize you all did not write the plugin – the issue is that a featured image is showing up when it did not on my last theme. I hope you can help!

Thank you for your wisdom and help!