pamhyr: Set axis label color to 'black' instead 'green'.

src/View/Results/PlotAC.py

@@ -61,11 +61,11 @@ class PlotAC(PamhyrPlot):
 
         self.canvas.axes.set_xlabel(
             _translate("MainWindow_reach", "X (m)"),
-            color='green', fontsize=11
+            color='black', fontsize=11
         )
         self.canvas.axes.set_ylabel(
             _translate("MainWindow_reach", "Elevation (m)"),
-            color='green', fontsize=11
+            color='black', fontsize=11
         )
 
         reach = self.results.river.reach(self._current_reach_id)