Huete, Whuete, and Huwete flags!
The rainbow wave is generally supposed to represent colors and a general connection to colors. The colors are pastel to reduce eyestrain and to represent Associative color-related Synesthesia, since we don’t actually see the colors.
The wave shape specifically is also supposed to represent perceiving colors due to Synesthesia. The sort of ‘scribbly’ brush/pattern used for the rainbow is supposed to represent creativity, since a lot of people with Synesthesia are fairly creative, and since colors are generally related to art.
For the Huete flag, the ‘x’ represents whatever causes one to perceive the colors related to said thing, since x is generally used as a representation for anything unspecified.
For the Whuete flag, the person represents a person... (just fleshing out the color explanation, I know this sounds dumb, lol).
For the Huwete flag, the person and little lines are supposed to represent personalities and personality traits.