[This post is by Adam Powell, an Android Framework engineer who cares about style. —Tim Bray] Android 4.0 showcases the Holo theme family, further refined since its debut in Android 3.0. But as most developers know, a new system theme for some Android devices isn’t a new or uncommon event. For developers new system themes mean more design targets for their apps. Using system themes means developer
![Holo Everywhere](https://cdn-ak-scissors.b.st-hatena.com/image/square/9d6c7603c1399861c1ea25a52e06ad8d7d9a6d35/height=288;version=1;width=512/https%3A%2F%2Fblogger.googleusercontent.com%2Fimg%2Fb%2FR29vZ2xl%2FAVvXsEixQKTSTrJRMft2GE2zg0D_WGV98uwoyQVbJGi0VecdtLS0Wys-KwF8ATpXZlrwoh7IlaZbyo6oVsHPvTvST1GDdzILy_xF85ybqZaDt3oI3nFtjJtT4faGE-_fYO8TycJq-XK5SICg_6cP%2Fs400%2FScreenshot_2011-11-17-22-19-53.png)