With the latest beta 2.20.1847 (win7 32) gadget settings revert back to defaults.
Prior to the beta, color setting such as theme and Aida64 header visibility could be set on the settings directly at the gadget setttings and the settings remained in effect when AIDA64 was set to start with windows.
After the beta install, color themes and header visibility setting in the gadget return to default at window start up.