--- a/Color.st	Fri Nov 04 13:07:43 2016 +0100
+++ b/Color.st	Fri Nov 04 15:59:14 2016 +0100
@@ -97,10 +97,10 @@
 
       Lobby           <Registry>      all colors in use - keeps track of already allocated
                                       colors for reuse and finalization.
-                                      (dont use it: this will be moved to the device)
+                                      (don't use it: this will be moved to the device)
 
       Cells           <Registry>      keeps track of allocated writable color cells
-                                      (dont use it: this will be moved to the device)
+                                      (don't use it: this will be moved to the device)
 
       FixColors       <Array>         preallocated colors for dithering on Display
       NumRedFix       <Integer>       number of distinct red values in FixColors
@@ -4829,7 +4829,7 @@
         ]
     ].
 
-    "/ on high-resolution true-color systems, dont care for dithering and
+    "/ on high-resolution true-color systems, don't care for dithering and
     "/ especially freeing colors
     "/ (no need to register)