CF.lumen APK + MOD (Pro) v3.74

Main Content

• Mod info
• CF.lumen Details
• How to download & install
• Safety statement

Mod Information

Pro

CF.lumen App Detail

CF.lumen adapts the colors on your Android device based on the position of the sun, or your custom configuration.

NOTE: Android 5.0 is now required. Versions up to v3.16 that support 4.4 KitKat are still available from the XDA thread (see far below). Performance drop since v3.60? Turn on performance mode.

When using the default settings, your display will get a warmer tint (lower color temperature) when the sun is down, vastly reducing strain on the eyes. Blue light makes your brain want to stay awake, and a lower color temperatures reduces the amount of blue displayed; using this in the evening reduces your brain's effort to keep you awake at night.

During sleeping hours by default a red filter is used. Red strains your eyes the least, and retains your night vision.

Light sensor

The light sensor can be used to automagically adjust the color: switch to the sleep filter in full dark, or to the day filter (usually none) under bright lights.

Because light sensor quality varies wildly between devices, a calibration option is provided to experiment with.

Color filters

Several filters are provided. Those named after a color (red, green, blue, ...) do not limit the display to those colors, but convert the displayed image to grayscale first, then display that image in levels of the selected color. This preserves details that would otherwise be lost.

Grayscale, invert colors, temperature adjustment and custom R/G/B adjustment filters are also provided.

Colorblindness

The master color filter setting also has an option for colorblindness enhancement, with settings for protanopia/anomaly, deuteranopia/anomaly and tritanopia/anomaly. These options in theory enhance clarity and color detail.

No claims are made to the effectiveness of these filters. These filters were thought up by Google engineers, CF.lumen just includes them.

Pro version

Upgrading to CF.lumen Pro will support my developments, remove all nags, unlock the option to start at device boot (make sure you test your configuration first), and unlocks notification options. It also enables Tasker integration.

In Pro mode, the notification adds convenient buttons to quickly disable the current filter or switch to sleep mode, and you can switch the notification to when enabled mode, which shows the notification only when a color filter is active.

In non-Pro mode, the notification only asks you to upgrade to Pro. It may seem that notification is just there to annoy you, but it actually prevents Android from randomly killing the background service taking care of all the work. Getting rid of it without getting the service killed can be done by going to Settings -> Apps -> CF.lumen and unticking Show notifications.

Having Chainfire3D Pro (ancient) installed will enable Pro.

Performance

When no color filter is active, there should not be any noticeable performance impact. When a filter is active, impact depends on device and what you are doing. On some devices we have tested there was no performance impact at all, on others it was slightly noticeable. It also depends on the driver in use.

Future

Keep in mind that Android's rendering system changes over time. You should be aware that this app may simply stop working on future Android versions without the possibility of a fix.

Scary permissions

By far most permissions are used only for Google Maps to set your location, and Google Play to provide for In-App Purchases. I cannot make any claims as to what information the Google components do or do not send to Google servers, but no information is sent to me or anyone else (than Google).

More

Advanced user more information, discussion, and support, can be found in this app's thread on XDA-Developers: http://forum.xda-developers.com/showthread.php?p=51779367

How to download and install CF.lumen Mod APK :

Open your phone's settings and go to the "Security & Privacy" option.

Find the option of "Unknown Sources" and turn it on (skip this step if it is already turned on).

Download and find CF.lumen Mod APK to be installed, which can be downloaded through a computer or mobile browser.

Click the downloaded APP installation package, the system will prompt whether to allow the installation of the APP, click "Continue to install".

During the installation process, the system may prompt that the APP needs to access certain device permissions, and the user needs to authorize according to the APP functional requirements.

After the installation is complete, you can find CF.lumen MOD on your Android device, and click to use it.

After the installation is complete, it is recommended to turn off the "Unknown Sources" option to prevent other malware from being installed on the device in a similar way.

Notes:

To avoid downloading and installing malicious programs, please try to download apps from official websites or trusted app stores.

Before installing the APP, you should check the permissions of the APP first, and do not easily authorize high-risk permissions to avoid leaking personal information.

Regularly update and upgrade the APP to fix possible bugs and weaknesses.

After installing the APP, it is recommended to install anti-virus software to strengthen device protection and security.

Safety statement

CF.lumen Mod APK has been tested and verified by multiple mainstream antivirus software to ensure that it does not contain any malicious programs or viruses. We will constantly update and strengthen security measures to protect user data and privacy.

However, since CF.lumen Mod APK comes from an unknown source, there are certain security risks. Therefore, we recommend that users carefully understand the functions and permissions of the APP before downloading and using it, and perform antivirus detection and upgrade operations on mobile phones or computers to avoid installing and using possible malicious programs.

At the same time, we also remind users to pay attention to the following safety precautions:

Download and install APPs should be obtained from official websites or trusted channels, and try to avoid downloading and installing from informal channels;

Do not install apps from unknown sources, and try to avoid using apps from unknown sources;

Do not easily authorize APP to access your private information and device permissions, including address book, camera, location, etc.;

Regularly clean up useless files and caches in your phone or computer to avoid excessive occupation of system resources and impact on device performance;

Upgrade operating systems and software versions in a timely manner, and patch security loopholes and weaknesses.

We attach great importance to the security and privacy of users, and will do our best to ensure the security of users' data and information. Thank you for your understanding and support