diff --git a/CImage.php b/CImage.php
index 5a14609..91aaba4 100644
--- a/CImage.php
+++ b/CImage.php
@@ -253,23 +253,29 @@ class CImage
 
 
     /**
-     * Properties 
-     * @todo Clean up these and check if and how they are used)
+     * Used with option area to set which parts of the image to use. 
      */
     private $offset;
 
-    public $keepRatio;
-    public $cropToFit;
 
-    private $cropWidth;
-    private $cropHeight;
-    public $crop_x;
-    public $crop_y;
-    public $filters;
-    private $type; // Calculated from source image
-    private $attr; // Calculated from source image
-    private $useCache; // Use the cache if true, set to false to ignore the cached file.
-    private $useOriginal; // Use original image if possible
+    /**
+     * Properties, the class is mutable and the method setOptions()
+     * decides (partly) what properties are created.  
+     *
+     * @todo Clean up these and check if and how they are used
+     */
+
+    //public $keepRatio;
+    //public $cropToFit;
+    //private $cropWidth;
+    //private $cropHeight;
+    //public $crop_x;
+    //public $crop_y;
+    //public $filters;
+    //private $type; // Calculated from source image
+    //private $attr; // Calculated from source image
+    //private $useCache; // Use the cache if true, set to false to ignore the cached file.
+    //private $useOriginal; // Use original image if possible
 
 
 
diff --git a/README.md b/README.md
index 19e359f..7a35b49 100644
--- a/README.md
+++ b/README.md
@@ -133,6 +133,7 @@ Revision history
 
 v0.5.x (latest)
 
+* Minor cleaning of properties in `CImage`. Fix #23.
 * Adding `webroot/htaccess` to show off how friendly urls can be created for `img.php`. Fix #45.
 * Added option `fill-to-fit, ff`. Fix #38.
 * Added option `shortcut, sc` to enable configuration of complex expressions. Fix #2.