Proper place to post Transition or Effects graphics

I'm trying to ascertain if this DaVinci Resolve forum is the best place to post text with graphics (effects) I'm trying to create? If so, graphics (screenshots saved in MS Paint) don't seem to load in these boxes. Do they need to be uploaded in a certain format? ex. .jpg, .pdf? Thank you.

Under the text box, there's an Upload Attachment tab. Use that to upload the image to the server, then be sure to add the image in the text box with the Place Inline option.