The Android OS is definitely a platform that is friendly to customization. So it's no surprise to see that BBM for Android has now been modified as a dark themed version. Previously, only certain BlackBerry devices received the darker BBM theme for the purpose of adding more hours of life to the device. The darker screen uses up to 25% less battery consumption on certain displays.
Developer, Myp4ss, has shared in the BBOS forums with us his latest version of the BBM for Android dark theme mod for all of you to enjoy! Download the BBM_DarkTheme.87++.apk, and head into the forums to find out how to install and discuss any findings/fixes.
Warning: This is not an official app and BlackBerryOS is not responsible for you bricking your device if it may happen. Proceed at your own risk.