PNG TrayIcon transparency on Windows

Question

I'm trying to use a transparent PNG as the icon for my Java application. The image on the JFrame and task bar work great. However, when I use the image with a TrayIcon, I get a black matte background around the edge of the PNG.

Has anybody else come across this issue? I would really like to use a PNG instead of GIF or JPEG.

Answer 1

With Java6, a PNG picture should be used for TrayIcon, but as mentioned in this SO question, check:

• the background color chosen to represent the transparent pixels
• the transparency options
• the resolution of the icon
• alternate format like SVG (provided you are using external library like Batik, and conversion mechnism to java.awt.Image)