Display

  <display>
    <!-- Time till lockscreen appears on no activity. Measured in milliseconds. -1 = never
 
      type: integer -->
    <timeout>-1</timeout>
    <!-- 
      type: integer
      minimum: 1
      maximum: 7 -->
    <contrast>4</contrast>
    <!-- 
      type: integer
      minimum: 57
      maximum: 255 -->
    <brightness>192</brightness>
  </display>