(svn r7444) -Codechange: Use one (global) cargo-colours array for drawing cargo-colours. Change Food

colour to pink everywhere (fixes FS#303)

gui.h

@@ -20,6 +20,7 @@ void ShowPatchesSelection(void);
 void DrawArrowButtons(int x, int y, int ctab, byte state, bool clickable_left, bool clickable_right);
 
 /* graph_gui.c */
+extern const byte _cargo_colours[NUM_CARGO];
 void ShowOperatingProfitGraph(void);
 void ShowIncomeGraph(void);
 void ShowDeliveredCargoGraph(void);