Added comment and keyword style for listings

beamerthemeawesome.sty

@@ -49,6 +49,8 @@
 	moredelim=**[is][\only<+>{\color{black}}]{@}{@},
 }
 \lstset{
+	commentstyle=\color{gray}\itshape,
+	keywordstyle=\bfseries,
 	escapeinside={<!}{!>},
 }