Update

lib/image.php

@@ -540,7 +540,7 @@ static public function resize($source, &$t_w, &$t_h, $method, $fill_callback=nul
 		'purple' => array(0xffffff, 0xdcccf8)
 	);
 
-	static public function draw_grid($image, $x1, $y1, $x2, $y2, $color1=0xFFFFFF, $color2=0xCCCCCC, $size=8)
+	static public function draw_grid($image, $x1, $y1, $x2, $y2, $color1=0xFFFFFF, $color2=0xCCCCCC, $size=4)
 	{
 		#
 		# resolve size
@@ -633,30 +633,32 @@ static public function decode_color($color)
 
 		if (is_string($color))
 		{
-			if ($color{0} == '#')
+			if ($color[0] == '#')
 			{
-				$color = substr($color, 1);
-			}
-
-			switch (strlen($color))
-			{
-				case 3:
-
-					return array
-					(
-						intval($color{0} . $color{0}, 16),
-						intval($color{1} . $color{1}, 16),
-						intval($color{2} . $color{2}, 16)
-					);
-
-				case 6:
-
-					return array
-					(
-						intval($color{0} . $color{1}, 16),
-						intval($color{2} . $color{3}, 16),
-						intval($color{4} . $color{5}, 16)
-					);
+				switch (strlen($color))
+				{
+					case 4:
+					{
+						return array
+						(
+							intval($color[1] . $color[1], 16),
+							intval($color[2] . $color[2], 16),
+							intval($color[3] . $color[3], 16)
+						);
+					}
+					break;
+
+					case 7:
+					{
+						return array
+						(
+							intval($color[1] . $color[2], 16),
+							intval($color[3] . $color[4], 16),
+							intval($color[5] . $color[6], 16)
+						);
+					}
+					break;
+				}
 			}
 
 			// TODO-20090418: add support for rgb()
@@ -680,7 +682,10 @@ static public function allocate_color($image, $color)
 	{
 		$color = self::decode_color($color);
 
-		return imagecolorallocate($image, $color[0], $color[1], $color[2]);
+		return imagecolorallocate
+		(
+			$image, $color[0], $color[1], $color[2]
+		);
 	}
 
 	static public $color_names = array