Snippet for setColor within the ARSupportAudienceViewController

setColor+Snippet.swift

@IBAction func setColor(_ sender: UIButton) {
    guard let colorSelectionBtn = self.colorSelectionBtn else { return }
    colorSelectionBtn.tintColor = sender.backgroundColor
    self.lineColor = colorSelectionBtn.tintColor
    toggleColorSelection()
    // send data message with color components
    if self.streamIsEnabled == 0 {
        guard let colorComponents = sender.backgroundColor?.cgColor.components else { return }
        self.agoraKit.sendStreamMessage(self.dataStreamId, data: "color: \(colorComponents)".data(using: String.Encoding.ascii)!)
        if debug {
            print("color: \(colorComponents)")
        }
    }
}