libappindicator3-0.1-cil-dev 12.10.0+git20151221-5 (amd64 binary) in ubuntu cosmic

 appindicator3-sharp assembly allows CLI (.NET) programs to use the
 Ayatana Appindicator3 library.
 .
 This package contains development files for Appindicator# and should be used
 for compilation.