for those who dont know why banana ketchup is used, the Philippines for a time period didnt have ready access to tomatoes, so to get a sweet red sauce, they substituted tomatoes with bananas. thus related, since they didn't have tomatoes, you couldnt make a tomato based sauce, so here comes in banana ketchup.
I can understand the bananas to make it sweet, but would banana ketchup still be red somehow? Or would it just be kind of a pale yellow ketchup equivalent?