
The moveable images to the right demonstrate the value of using AlphaImageLoader to display Portable Network Graphics (PNG) image files.
The Graphics Interchange Format (GIF) image can have only one level of transparency, while the PNG image has a full range of transparency. Move the PNG image over the GIF image to compare the transparency.
Transparency for PNG images is respected during text selection. This means that a user can select content that is displayed behind the fully transparent region of the image.
The PNG image has crisper edges independent of the backround color. To keep a sharp edge on a GIF image you must create a new image for each background color it will be used in.