toCSS メソッドを追加

diff --git a/src/swf/rgba.js b/src/swf/rgba.js
index 08f955f..03b204b 100644 (file)
--- a/src/swf/rgba.js
+++ b/src/swf/rgba.js
@@ -27,4 +27,8 @@ FlappSWFRGBA.load = function(ibit, hasAlpha) {
     };
 };
 
+FlappSWFRGBA.toCSS = function(color) {
+    return 'rgba('+color.red+','+color.green+','+color.blue+','+color.alpha+')';
+}
+
 });