Here, it explains how to change the color of the choice button.

(1)Click the setting button on the upper right of the management page.

(2)Click [Chat]>[Design]>[Template] on the left side of the screen.

(3)Click [Detailed setting] at the bottom right of the screen.

(4)Choose the color of [choice background], [background's color when the choice is hovering], [background color of choices after clicked], [color of letters in choices], and [color of letters in choices after clicked].

(5)Click [Update]