 <p>You can apply the Holo theme using the <a href="https://github.com/ChristopheVersieux/HoloEverywhere" rel="nofollow">HoloEverywhere</a> library. I use it in all my apps, and it works very well.</p> <p>You have to add it as a library project to use it. If you use Git, you can add it as a submodule.</p>