Backport: Remove casts, drop default argument, use const.

Backport of changeset 6708:6705d3f828c5.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/XPM.h b/src/XPM.h
index a2bd6cb91..2af0ae84e 100644
--- a/src/XPM.h
+++ b/src/XPM.h
@@ -59,7 +59,7 @@ public:
 	float GetScaledWidth() const { return width / scale; }
 	int CountBytes() const;
 	const unsigned char *Pixels() const;
-	void SetPixel(int x, int y, ColourDesired colour, int alpha=0xff);
+	void SetPixel(int x, int y, ColourDesired colour, int alpha);
 };
 
 /**