*Uploads image*
"Sorry, JPEGs are not allowed in category Digital Art > Backgrounds > Non Isometric"
What? No, DA, that's a bitmap.
*Tries changing category*
"Sorry, unknown file types are not allowed in category Digital Art > Drawings > Landscapes & Scenery".
BITMAP. BITMAP. It even says .bmp RIGHT THERE under the image on the very thumbnail you've generated for me.
*Gives up*