In May of this year Bart Bonte published Yellow (Game). Great little game.
I'm not sure if Peng Wan's Make Me Yellow is a clone. The concept is the same, but the levels appear be different. I did the first 6 levels of Peng's game (stuck on 6) and then redid the first 20 levels of Bart's game. I saw no identical puzzles. But of course, there could be.
I emailed Peng to ask him about this. No response. I also emailed Bart, who said thanks for the alert.
At the VERY LEAST, Peng: you should acknowledge that you were inspired by Bart.