From: United States
While I cannot vote on the current Facebook poll (I'm not a member and have no interest in joining Facebook), I can read the comments. One of them suggested color FaPs; someone else said that that would not work. However, there *is* a way to do a 2-color FaP puzzle: put two numbers, one of each color, in the square.
Example: red and black, which is a common combination here. If there are three red squares and four black squares among the nine squares in question, put this inside the square: 3,4. Or separate them with a slash, much as a Kakuro puzzle does. A good way to test how effective this would be is to devise a Basic Logic puzzle with one area of the second color: say a yellow sun shining.
Hope this idea merits a serious look: no charge