Suggest allowing the mouse-over text for the contact button to be changed in the Config: Contact form settings. Right now it shows the "Get in contact with %Gallery name%" which can lead to some funky wording.
PS development of the CPG 1.5x looks great so far, keep up the good work. :)
Thanks for your readiness to contribute during the dev stage of cpg1.5.x, however the corresponding board isn't open yet.