Removing a image before posts in BlueSpot Theme

I am using a theme called BlueSpot which has this blue sun picture that is present on the left of posts, in this image you can see the pic I’m talking about to the left of the word Numbers and Back to School (which are post titles).

I want to get rid of that image, not just by changing it, I want to get rid of the code that puts any image there. I tried looking through the code (my PHP is weak) but I couldn’t find it. Where would I find the code that puts that image there?

Thanks