Add coloured tag for sticky comments.

rtv/terminal.py

@@ -67,6 +67,12 @@ class Terminal(object):
         attr = curses.A_BOLD | Color.YELLOW
         return symbol, attr
 
+    @property
+    def stickied(self):
+        text = '[stickied]'
+        attr = Color.GREEN
+        return text, attr
+
     @property
     def vline(self):
         return getattr(curses, 'ACS_VLINE', ord('|'))