I thought dogs and cats were colorblind too, Sue. But Hairwolf definately prefers purple. She loves these little plastic balls with bells in them. They come in packages of eight, two each of pink, purple, green and yellow. She ignores all but the purple. The purple ones she plays with. The others one only get attention if a human picks it up and tosses it for her or if she is bringing it to us meowing for us to find her a purple one(she brings it, drops it at our feet, meows, sniffs it, turns her nose up, walks away a few steps, then looks at us pointedly and meows again)
And the only balls she bats off the tree are the purple or dark red(kind of burgandy colored) ones. I've never seen the like. Hershey(our last cat) was an equal opportunity tree destroyer.
Debby, when this one isn't pulling the garland off the tree, she is wrapping herself up in it. How she can tangle herself up in and then just slink out of it, has to be a cat talent. I really just think she does it so I have to untangle it to put it back on the tree! Thank goodness I don't have any satin balls. Those wouldn't last a second.