Default Android Switch

When Android Refreshes a New rom, it usually has some default settings after the first boot.

For example:

Data switch, GPS, automatic screen rotation, and so on are on. Where is the configuration information here?

In the \ frameworks \ base \ packages \ settingsprovider \ res \ values \ defaults. xml file, there is a defined default switch (where true is enabled, false is off) as follows:
<Bool name = "def_dim_screen"> true </bool>
<Bool name = "def_airplane_mode_on"> false </bool> flight mode

<Bool name = "def_auto_time"> true </bool> automatic adaptation time
<Bool name = "def_accelerometer_rotation"> true </bool> gravity sensing
<Bool name = "def_screen_brightness_automatic_mode"> true </bool> automatic brightness adjustment
<Bool name = "def_haptic_feedback"> false </bool> trigger feedback
<Bool name = "def_effecth_on"> false </bool> Bluetooth
<Bool name = "def_install_non_market_apps"> false </bool> install non-market APK
<Bool name = "assisted_gps_enabled"> true </bool> GPS Positioning
<Bool name = "def_usb_mass_storage_enabled"> true </bool> large-capacity USB storage mode
<Bool name = "def_wifi_on"> false </bool> WiFi
<Bool name = "def_networks_available_notification_on"> true </bool> indicates that a data connection is enabled.
<Bool name = "def_backup_enabled"> true </bool> Save
<Bool name = "def_icationication_pulse"> true </bool> vibration notification
<Bool name = "def_mount_play_notification_snd"> false </bool> unknown
<Bool name = "def_mount_ums_autostart"> false </bool> Automatic Restart
<Bool name = "def_mount_ums_prompt"> true </bool> unknown
<Bool name = "def_mount_ums_policy_enabled"> true </bool> unknown
<Bool name = "def_notifications_use_ring_volume"> true </bool> sound reminder
<Bool name = "def_vibrate_in_silent"> true </bool> silent Vibration
<Bool name = "def_device_provisioned"> true </bool>
<String name = "def_time_12_24"> 24 </string> set the time format (in the 24-hour or 12-hour format)
<Integer name = "def_screen_off_timeout"> 60000 </Integer> automatic screen off time (1 minute)
<Integer name = "def_screen_brightness"> 216 </Integer> screen brightness (0-255)
<Integer name = "def_network_preference"> 1 </Integer> default network selection (item 1)
<Integer name = "def_power_sounds_enabled"> 1 </Integer> low-power sound (on)
<Integer name = "def_dock_sounds_enabled"> 0 </Integer> unknown
<Integer name = "def_lockscreen_sounds_enabled"> 0 </Integer> lock screen sound (off)