add (un)authorizedButtonColor to make appearance more customisable
add (un)authorizedButtonColor to make appearance more customisable

lfarah/PermissionScope,felix-dumit/PermissionScope,kylejm/PermissionScope,nickoneill/PermissionScope,felix-dumit/PermissionScope,nickoneill/PermissionScope,lfarah/PermissionScope,bre7/PermissionScope,kylejm/PermissionScope,bre7/PermissionScope