you´re right - green is good - make a version with the multicoloured "i" just in audio and another version with just the green button (without multicoloured i)
#33 change the "a" to the version before or if possible like #25 (the a like #4 was my mistake) -->the multicoloured "i" reduce the number of squares and make them bigger not widen, just use orange and red squares - without green (it doesn´t fit with the green button on the right side)