Improves #75 - Set darker default diff colors for DarkMonkey Font & Color Profile

jme3-dark-laf/src/org/jme3/netbeans/plaf/darkmonkey/fac/DarkMonkeyFAC-text-x-diff-token.xml

@@ -5,8 +5,9 @@
         <font style="bold"/>
     </fontcolor>
     <fontcolor default="error" name="error"/>
-    <fontcolor foreColor="ff009900" name="added"/>
-    <fontcolor foreColor="ffff3300" name="removed"/>
+    <fontcolor foreColor="ff196019" name="added"/>
+    <fontcolor foreColor="ffaf1919" name="removed"/>
+    <fontcolor foreColor="ff191977" name="changed"/>
     <fontcolor bgColor="darkGray" name="filename">
         <font style="bold+italic"/>
     </fontcolor>