Back light stays on when lock screen is visible


When I press any button after my phone has been asleep, and my Kustom lock screen becomes visible, the screen stays lit and does not dim and go back to sleep after a few seconds.

Instead, it seems to follow the sleep settings in Android for regular screen inactivity.

This can be annoying when I simply press a button to see what time it is, and I would then simply like the screen to dim and go back to sleep on it' own after a few seconds.

Is there a way to change this setting within the program?

Thank you!