Do you see something unusual on this menubar screenshot or on the dock screenshot right?
Well, with next MBS Filemaker Plugin version you can change the name of the app in the menubar and also change the dock icon. Some nice new ways to customize your solutions with Filemaker. And for the dock tile you can still use the badge function to show a little number or text. For example like Mail to show the number of unread emails.
For the dock icon you best use a square image with at least 128x128 pixel size. Better you use 512x512 (for retina) and the plugin will fit the image to the right size requested by the operation system. For transparency, please use a PNG file.