Conditionally select subset of network based on link values (for distance-to, path-to and turtles-in-radius)

I would like to conditionally select a subset of a network based on link values to perform some functions, mainly distance-to, path-to and turtles-in-radius.

So for example, I have a network with links. Each link has either a red, green or blue color. I would like see which turtles are in a certain radius using only the green and blue links (so not red). Then I want to find a path those one of those turtles over only those green and blue links.

Is it currently possible to select such a subset of the network/links? If so, how? (I would expect something like with [color != red]). If not, it would be amazing to have this as an feature!

Start with the linked documentation for distance-to, path-to, and turtles-in-radius, then inspect the NW-Extension implementation to determine whether link predicates are supported. Clarify the intended filtering semantics for colored links and whether the result should be documentation of an existing capability or a new feature. Done means an agreed scope and corresponding behavior or usage guidance for filtered networks.