If You want change your Ionic 2 app’s color in Android 5+ Task Manager (recent apps), you need install [cordova-plugin-recentscontrol]
(https://www.npmjs.com/package/cordova-plugin-recentscontrol) and then go to config.xml and insert this code
<preference name="RecentsBackgroundColor" value="#FFCC00" />
<preference name="RecentsDescription" value="App Name" />
SFME
Very nice! Thanks for sharing this 
This plugin was working before i installed crossawalk into ionic 2 android platform,
Now its showing blue color and default app name in recents tab after crosswalk.
Any workaround for enabling recents app in crosswalk enabled android??
Well, i was able to get the Name working after changing App Name from config file, but no luck for tabs color so far…