Changing image size on home page (Thanks Roy)

I recently upgraded to Thanks Roy 2.7.1 and the featured item and collection images are quite large. Is there a way to adjust the display size of those two images within the settings? If not, what file would I edit to decrease their size?
Thanks.

As admin you can change the appearence settings of any theme changing the configuration “Appearance”:

Thanks for the help! I changed those values in settings and it doesn’t affect the image size. I even tried an obnoxious value, like 100. I thought it might be a conflict from a plugin. I disabled the plugins, but the image size remains the same. I am running version 3.1.1 of Omeka.

You can see from the screenshot how large the images are displaying.