diff --git a/ChangeLog b/ChangeLog
index e4e556f752..ae0f2d8f75 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-07-08  Sven Neumann  <sven@gimp.org>
+
+	* plug-ins/common/spheredesigner.c: don't cast between GimpRGB and
+	GimpVector; it works but it's ugly and caused compiler warnings.
+
 2006-07-07  Michael Natterer  <mitch@gimp.org>
 
 	* app/dialogs/preferences-dialog.c (prefs_dialog_new): changed
diff --git a/plug-ins/common/spheredesigner.c b/plug-ins/common/spheredesigner.c
index c7b853e72d..035c5be071 100644
--- a/plug-ins/common/spheredesigner.c
+++ b/plug-ins/common/spheredesigner.c
@@ -2394,25 +2394,41 @@ getscales (GtkWidget *widget,
 
 
 static void
-color1_changed (GimpColorButton *button,
-                gpointer         data)
+color1_changed (GimpColorButton *button)
 {
   texture *t = currenttexture ();
+
   if (t)
     {
-      gimp_color_button_get_color (button, (GimpRGB *) &t->color1);
+      GimpRGB color;
+
+      gimp_color_button_get_color (button, &color);
+
+      t->color1.x = color.r;
+      t->color1.y = color.g;
+      t->color1.z = color.b;
+      t->color1.w = color.a;
+
       restartrender ();
     }
 }
 
 static void
-color2_changed (GimpColorButton *button,
-                gpointer         data)
+color2_changed (GimpColorButton *button)
 {
   texture *t = currenttexture ();
+
   if (t)
     {
-      gimp_color_button_get_color (button, (GimpRGB *) &t->color2);
+      GimpRGB color;
+
+      gimp_color_button_get_color (button, &color);
+
+      t->color2.x = color.r;
+      t->color2.y = color.g;
+      t->color2.z = color.b;
+      t->color2.w = color.a;
+
       restartrender ();
     }
 }
@@ -2422,19 +2438,23 @@ drawcolor1 (GtkWidget *w)
 {
   static GtkWidget *lastw = NULL;
 
+  GimpRGB  color;
   texture *t = currenttexture ();
 
   if (w)
     lastw = w;
   else
     w = lastw;
+
   if (!w)
     return;
   if (!t)
     return;
 
-  gimp_color_button_set_color (GIMP_COLOR_BUTTON (w),
-                               (const GimpRGB *) &t->color1);
+  gimp_rgba_set (&color,
+                 t->color1.x, t->color1.y, t->color1.z, t->color1.w);
+
+  gimp_color_button_set_color (GIMP_COLOR_BUTTON (w), &color);
 }
 
 static void
@@ -2442,19 +2462,23 @@ drawcolor2 (GtkWidget *w)
 {
   static GtkWidget *lastw = NULL;
 
+  GimpRGB  color;
   texture *t = currenttexture ();
 
   if (w)
     lastw = w;
   else
     w = lastw;
+
   if (!w)
     return;
   if (!t)
     return;
 
-  gimp_color_button_set_color (GIMP_COLOR_BUTTON (w),
-                               (const GimpRGB *) &t->color2);
+  gimp_rgba_set (&color,
+                 t->color2.x, t->color2.y, t->color2.z, t->color2.w);
+
+  gimp_color_button_set_color (GIMP_COLOR_BUTTON (w), &color);
 }
 
 static gboolean do_run = FALSE;