--- a/XftFontDescription.st	Sun Feb 12 22:10:14 2017 +0100
+++ b/XftFontDescription.st	Sun Feb 12 22:10:26 2017 +0100
@@ -1140,13 +1140,21 @@
 !XftFontDescription methodsFor:'testing'!
 
 isAlienFont
-    "my GraphicsContext knows how to disply strings in my font"
+    "my GraphicsContext knows how to disply strings in my font.
+     Alien fonts are eg. Hershey or Bitmap fonts, which are drawn by st/x itself."
 
     ^ false
+
+    "Modified (comment): / 12-02-2017 / 22:03:39 / cg"
 !
 
 isXftFont
+    "anwer true, if this is an Xft font.
+     Sure, I am"
+     
     ^ true
+
+    "Modified (comment): / 12-02-2017 / 22:04:23 / cg"
 ! !
 
 !XftFontDescription::FCFontListParser class methodsFor:'api'!