Index: data/misc/colors.tilespec
===================================================================
--- data/misc/colors.tilespec	(revision 12602)
+++ data/misc/colors.tilespec	(working copy)
@@ -90,24 +90,24 @@
 }
 
 ; Reqtree
+reqtree_known = {"r", "g", "b"
+    255, 255, 255
+}
+reqtree_reachable = {"r", "g", "b"
+    210, 180, 140
+}
+reqtree_unreachable = {"r", "g", "b"
+    190, 150, 110
+}
 reqtree_researching = {"r", "g", "b"
-    0, 255, 200
+    255, 64, 64
 }
-reqtree_known = {"r", "g", "b"
-    0, 200,   0
-}
 reqtree_reachablegoal = {"r", "g", "b"
-    255, 128, 128
+    95,  180, 200
 }
 reqtree_unreachablegoal = {"r", "g", "b"
-    255,   0, 128
+    85,  140, 170
 }
-reqtree_reachable = {"r", "g", "b"
-    255, 255,   0
-}
-reqtree_unreachable = {"r", "g", "b"
-    255,   0,   0
-}
 reqtree_background = {"r", "g", "b"
     0,   0,   0
 }