LG VS930 - Manual (Page 185)

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Settings
Stay awake: Checkmark to set the screen to never timeout while
charging.
Protect SD card: Checkmark to protect the SD card. When the SD card
is protected, applications must request permission to read data from
external storage.
DEBUGGING
USB debugging: Checkmark to turn on debug mode when USB is
connected.
Allow mock locations: Checkmark to set the device to a mock location.
Select debug app: Allows you to select the debugging application.
Wait for debugger: Checkmark to wait for debugger. Debugged
application waits for debugger to attach before executing.
INPUT
Show touches: Checkmark to show visual feedback when the screen is
tapped.
Show touch data: Checkmark to make tap data visible on the screen.
DRAWING
Show layout bounds: Checkmark to show clip bounds, margins, etc.
Show GPU view updates: Checkmark to flash views inside windows
when drawn with the GPU.
Show screen updates: Checkmark to flash areas of the screen when
they are updated.
Window animation scale: Allows you to set the window animation
scale.
Transition animation scale: Allows you to set the transition animation
scale.
Animator duration scale: Allows you to set the animator duration scale.
Disable HW overlays: Checkmark to use the GPU for screen
compositing.