Featured image size in WordPress. Betheme

I am using Betheme in WordPress. I would like to use a featured image for one of my pages, but the proposed size doesn’t work at all. It says 1200x635 but really the area looks like it would be 1200x200 or something like that.



You can get help/ask your question with that item author @muffingroup right here as a comments

hope they will helped!