--- a/gamma.tk	Mon Oct 23 00:35:20 2006 +0200
+++ b/gamma.tk	Tue Oct 24 10:18:01 2006 +0200
@@ -140,12 +140,12 @@
 	set xmax [lindex [lindex $points [expr {$icolors + 1}]] 0]
 	set nxmin $xmin
 	set nxmax $xmax
-	prepare_colors $type $nxmin $nxmax
+	prepare_colors_center $type $nxmin $nxmax
+	prepare_colors_margins $type $nxmin $nxmax
 }
 
-proc prepare_colors { type nxmin nxmax } {
-	global gradient
 
+proc prepare_colors_margins { type nxmin nxmax } {
 	switch -- $type {
 		r {
 			set cmin [color $nxmin 0 0]
@@ -163,6 +163,10 @@
 	# Set the bg and fg color to xmin and xmax
 	.leftcol.c configure -background $cmin -foreground $cmax
 	.rightcol.c configure -background $cmin -foreground $cmax
+}
+
+proc prepare_colors_center { type nxmin nxmax } {
+	global gradient
 
 	# Prepare the colors of the middle buttons
 	for {set i 0} {$i < $gradient} {incr i} {
@@ -197,7 +201,7 @@
 
 	if {[expr {$nxmax - $nxmin}] > $th_prec} {
 		puts "$type - More precision needed"
-		prepare_colors $type $nxmin $nxmax
+		prepare_colors_center $type $nxmin $nxmax
 	} else {
 
 		puts "$type - New point!"