• General
  • Wallpaper Accent Color Tracking Question

Since Android version 12 it is possible to extract accent color from wallpaper to theme the system the same color style. Source: https://fingerprint.com/blog/how-android-wallpaper-images-threaten-privacy/

Can GrapheneOS mitigate against it? Is that even important or would be a wallpaper fingerprint the same as an identifier GrapehenOS is already exposing to apps?

What are the best practices to deal with it?

    adelina

    You have 2 options:
    a. just ignore the 'issue' and use your phone with your own wallpaper, the chances of this being used widely by big tech are small (becouse then they could/would also make sure every single phones' wallpaper is slightly different)

    b. dont change the wallpaper and keep using the default black one so you have some resistance

    adelina
    What @jultaholtu said, or alternatively you can use whichever wallpaper you want and instead of using "wallpaper colors" you can use "basic colors". Basic colors still seems to use wallpaper colors, but I guess it uses a generic palate based on a single color, which should hypothetically reduce the fingerprinting effectiveness.

    Is the fingerprint thing even a problem? Is there an Android profile identifier that is visible to apps? If something like that already exists, the fingerprint from the wallpaper would not reveal any more information. I'm not an Android developer, so this question should be answered by someone other than me.

    The basic color idea seems to be a good fix. I think about it like letterboxing in the Tor Browser. It is still a fingerprint but you fall into a bigger set of users. If you allow me to finish your thought, I would assume that most basic color users would use the first one so that one would be then the best choice in terms of anonymity.