Thank you for your current work, it's great!
I'm building an app where I use Google Places autocomplete API. I found out that most of the place type icons are already here, but some of them are missing.
The entire up-to-date list is on https://developers.google.com/places/supported_types
The following are missing comparing to the list today:
// Types supported in place search and addition (Table 1)
// Additional types returned by the Places service (Table 2)
// Since most of them are absent I explicitly described those present
// natural_feature is present
// political is present
// point_of_interest is present
// post_box is present
// postal_code is present
// postal_code_prefix is present
// route is preset
// transit_station is prese
I think it's a nice goal to have all those types covered.