How do I change the size of a featured image.
Here’s my experiment.
Notice the size of the featured image for this same image for it’s original post: about Plugin For More Fonts
It should be twice as large which allows the image to be more clear.
How?
I downloaded the original image from its post, then I uploaded it again and scaled the dimensions to half the size. Edublogs How To Scale Images
I wanted to have the large size available for a post, but make a smaller one for the featured image.
If you’re only going to use the larger image as a featured image, just upload and scale.
Hope that helps.