General Overlays

• Refresh Rate Overlays

Overlay Path: overlay-bliss/packages/apps/Settings/res/values/bliss_config.xml
Default status: Disabled

This overlay is required to Enable Refresh Rate Controls.

    <!-- Show refresh rate controls -->
    <bool name="config_show_refresh_rate_controls">true</bool>

• Charging Support Overlay

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml
Default status: Disabled

- VOOC Charging ( If your device supports )

This overlay is required to Enable VOOC charging support.

    <!-- Whether device has VOOC charging support -->
    <bool name="config_hasVoocCharger">true</bool>

- WARP Charging ( If your device supports )

This overlay is required to Enable Warp charging support.

    <!-- Whether device has warp charging support -->
    <bool name="config_hasWarpCharger">true</bool>

- Dash Charging ( If your device supports )

This overlay is required to Enable Dash charging support.

    <!-- Whether device has dash charging support -->
    <bool name="config_hasDashCharger">true</bool>

• Multi usb controller overlay (ONLY FOR ASUS ROG DEVICES)

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml
Default status: Disabled

Since all ROG devices have 2 usb ports. We can use both for mtp, not just as charger.

This overlay is required to add support for Multi USB Controller.

    <!-- Switch USB controller on Asus ROG devices-->
    <bool name="config_switchUsbController">true</bool>

• Multi-colour LED

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml
Default status: Enabled

This overlay is required to Enable Multi-coloured LED lights for supported devices.

{% hint style="info" %} For most of the Xiaomi devices, this must be set to 'false' as they have white-only LEDs. {% endhint %}

    <!-- Does the notification LED support multiple colors?
         Used to decide if the user can change the colors -->
    <bool name="config_multiColorBatteryLed">false</bool>

• Call Recording

{% hint style="info" %} This feature only works on AOSP Dialer and not on Google Dialer. {% endhint %}

Overlay Path: overlay/packages/apps/Dialer/java/com/android/dialer/callrecord/res/values/config.xml
Default status: Disabled

This overlay is required to Enable Call recording on AOSP Dialer's.

	<!-- Enable Call recording -->
	<bool name="call_recording_enabled">true</bool>
	<integer name="call_recording_audio_source">4</integer>

{% hint style="warning" %} Call recording is illegal in some countries. Kindly refer to local laws before enabling this feature!! {% endhint %}

UDFPS Specific Overlays

• UDFPS Support

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml

This overlay is required to Enable UDFPS Support. The overlay is used to determine HBM Type for UDFPS. Required inorder for UDFPS to work.

    <!-- HBM type of UDFPS overlay.
            0 - GLOBAL HBM
            1 - LOCAL HBM
    -->
    <integer name="config_udfpsHbmType">0</integer>

• UDFPS Vendor code

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml

This overlay is used to define vendor code. Required inorder for UDFPS to work.

    <!-- Udfps vendor code -->
    <integer name="config_udfpsVendorCode">0</integer>

• UDFPS Animations

For UDFPS Animation to work you need 2 things in your device tree source.

• A Flag in bliss_codename.mk makefile in your respective device tree
• An overlay to set Default FOD Pressed Color

Flag Required to build UDFPS Animation resources

# UDFPS Animations
EXTRA_UDFPS_ANIMATIONS := true

To set Default UDFPS Pressed color

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml
Default status: Disabled

This overlay is required to set Default UDFPS Pressed Color.

    <!-- Default fod pressed color -->
    <integer name="config_fod_pressed_color">1</integer>

To set UDFPS Animation Offset

Overlay Path: overlay-bliss/frameworks/base/packages/SystemUI/res/values/dimens.xml

This overlay is required to set UDFPS Animation offset for respective devices.

{% hint style="info" %} Adjust this value as per your device. {% endhint %}

    <!-- Udfps animation offset -->
    <dimen name="udfps_animation_offset">50dp</dimen>

To set UDFPS Animation Size

Overlay Path: overlay-bliss/frameworks/base/packages/SystemUI/res/values/dimens.xml

This overlay is required to set UDFPS Animation size for respective devices.

{% hint style="info" %} Adjust this value as per your device. {% endhint %}

    <!-- Udfps animation size-->
    <dimen name="udfps_animation_size">176dp</dimen>

To set Color of the UDFPS Pressed view

Overlay Path: overlay-bliss/frameworks/base/core/res/res/values/bliss_config.xml

This overlay is required to set Color of the UDFPS Pressed view for respective devices.

    <!-- Color of the UDFPS Pressed view -->
    <color name="config_udfpsColor">#ffffe6</color>

• Screen-Off FOD

Overlay Path: overlay/packages/apps/Settings/res/values/bliss_config.xml
Default status: Disabled

This overlay is required to Enable Screen OFF FOD.

    <!-- Screen off FOD -->
    <bool name="config_supportScreenOffFod">true</bool>