I found this collection today looking for something else. Each of his files are setup for Photoshop and Abode Illustrator, but include a transparent .png of all the symbols. They are also provided with a Creative Commons, no rights reserved (CC0) license. To use in CC3 will take a little work but they can provide that something a little different.

I did not really look for a previous post on this collection, so my apologies if there is a previous post.

I think they are still too dark. If you were to put them in a street scene I think they would be dark blobs. I think you hit it right with the PIIIs above posted on Feb 28th. Always a compromise.

The sample seems too dark to me. Especially after looking at the 3 schemes for the P III.

See my gallery on "The Newcastle - a study in Map Styles"

I found this web site with a series of aerial and satellite imagery. I thought it would be of interest.