LG LGP659BK - Manual (Page 90)

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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.
Force GPU rendering - Checkmark to use the 2D hardware acceleration in applications.
MONITORING
Enable strict mode - Checkmark to flash the screen when applications operate
for a long period of time on the main thread.
Show CPU usage - Checkmark to overlay the current CPU usage on the screen.
Profile GPU rendering - Checkmark to measure rendering time in adb shell
dumpsys gfxinfo.
Enable traces - Allows you to select enabled traces.
APPS
Don't keep activities - Checkmark to force stop every activity as soon as the
user leaves it.
Background process limit - Allows you to set the background process limit.
Show all ANRs - Checkmark to show a dialog box when applications running in
the background are not responding.
< About phone >
View legal information and check your phone status and software version.
System updates - Allows you to check for Android system software updates
and other current information.
Network - Allows you to view your network, network type and strength, service
state, roaming status, mobile network state, and IP address.