new option: start_angle_degrees

maybe like that? :)

-- 
With best regards,
_______________________________
Vladimir Testov, ROSA Laboratory.
www.rosalab.ru
diff -Naur grub-2.00/grub-core/gfxmenu/gui_circular_progress.c grub-new2/grub-core/gfxmenu/gui_circular_progress.c
--- grub-2.00/grub-core/gfxmenu/gui_circular_progress.c	2010-12-01 17:45:43.000000000 +0300
+++ grub-new2/grub-core/gfxmenu/gui_circular_progress.c	2013-03-20 09:38:55.919520096 +0400
@@ -235,6 +235,10 @@
     {
       self->start_angle = grub_strtol (value, 0, 10);
     }
+  else if (grub_strcmp (name, "start_angle_degrees") == 0)
+    {
+      self->start_angle = grub_strtol (value, 0, 10) * 64 / 90;
+    }
   else if (grub_strcmp (name, "ticks_disappear") == 0)
     {
       self->ticks_disappear = grub_strcmp (value, "false") != 0;
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