Product testing is any process by means of which a researcher measures a product's performance, safety, quality, and compliance with established standards.
Transcript of True Colors (lyrics meaning) person they really are. it is how you act and who you REALLY are. The author Cyndi Lauper, in the song, true colors, uses repetition as a primary literary device. Lauper's use of repetition enhances the theme by relating true colors.
If you mean royal in the phrase that it used to be the color of rayalty and kings: Red, Bright blue and purple (and ofcourse gold). This is because those colors were hard to get and thus expensive, so paints and clothes in these colors could only be afforded by rich people, thus making them royal.