One Tip a Day

Last time, two colors were met within two lines, so I marked the areas outside those lines with an X. Today is an application of that. 1. Look inside the second and third vertical lines from the right (blue boxes). 2. If only the two colors, pink and cyan, are fully within the two lines, and purple, light green, and brown also have spaces in the outer areas? 3. Then, since the two lines represent two cats, they must exist in pink and cyan. Just mark the purple, light green, and brown within the blue box area with an X, and you're done!