When I listen to streaming audio the lockscreen background changes to the site providing the audio. In some cases the busy background makes it impossible to see the numbers on the pin keyboard. I must use a pin. Is there any way to prevent this background change? It happens with every streaming audio sources I use. Alternatively, if there is no way to prevent this is there a way to make the pin screen keyboard to have bright yellow numbers that are more likely to be visible against most backgrounds? Thanks. I actually had to restart my phone to get the normal background to enter my code!