This is the IPA buds English alphabet. In the alphabets of languages, the letters have the colors of the IPA buds with their respective sounds. Left to Right gradient = The letter makes the sounds on the left and the right at the same time (left first, then right). Up to Down gradient = The letter makes both sounds at the top and bottom (sometimes the one at the top, sometimes the one at the bottom).
NOTE: Q makes the sound /kw/ when with a U, but /k/ standalone, like in Qatar.