Galaxy is a premium GO Weather EX theme, you may. 1. Pay with IAP. 2. Get it for free through Getjar Golds. Galaxy Reward Theme supports 4 1, 4 2, 2 1 sizes. It delivers the most accurate weather information from anywhere at any time. Hot to use the theme. After you download and installing the theme, 1. Enter GO Weather EX. Theme. Installed. Choose the theme your desired.