Index: board.h
===================================================================
--- board.h	(revision 36084)
+++ board.h	(revision 36085)
@@ -147,7 +147,10 @@
  * and adjusts the cursor confinement box */
 void pcb_board_resize(rnd_coord_t Width, rnd_coord_t Height, int undoable);
 
+/* change the thermal scale of the board, update the GUI */
+void pcb_board_chg_thermal_scale(double thermal_scale, int undoable);
 
+
 /* free the board and remove its undo list */
 void pcb_board_remove(pcb_board_t *Ptr);