We can not log into your wiki. This might be the reason why we can not see this. I can click on many pictures in your wiki but never get this particular window.
The screenshot you wanted to present is not particularly useful because it does not show the title bar where we could, perhaps, see what produced this image.
On another note: The link in your post fails to work. In another thread you claimed you were unable to learn how to apply formatting to your content. This is not true. You learned one way for coding links. It just happens that you learned the wrong way. You do it every time that way. Linking does not work this way. I described in great detail how to do links here in this forum. I also fixed one link for you here in this thread. I encourage you to look at the fixed link. It's the link which shows an image instead of the URL.