1. To change the icon, create your own icon with 16×16 dimension and save it as favicon.ico file. Then upload the icon file to your root directory using FTP. Or go to Graphene Options –> Display–> “Miscellaneous Display Options” and click on “Upload or select image from gallery”. Then upload your favicon.ico file.
2. To remove “Powered by WordPress and the Graphene Theme.”, add this to custom CSS. Go to Graphene Options –> Display–> Custom CSS and paste the below code in “Custom CSS styles” box.
#developer {
display: none;
}