Nice product but would you mind sharing the reasons why you abandoned it? Bing image search used to have a nearly identical feature but the flow was different.

Nice product but would you mind sharing the reasons why you abandoned it? Bing image search used to have a nearly identical feature but the flow was different. You would start with a keyword search for images, and could refine your search by drawing on a pixel grid in the colours of your choice. I personally got a kick out of drawing things like drawing a yellow sunset setting in the left over a blue ocean and having image search results contain that. Sadly bing appears to have removed that very very hidden feature. Perhaps for technical reasons similar to yours (if any?)?