Drop prefixes in property names

[lucaswoj]

From @peterqliu on November 17, 2014 21:9

Namely, fill-,line-,raster-,background-

These prefixes automatically take after the layer's type, and as long as they live on separate layers, are redundant. The other prefixes icon- and text- are necessary, since they can cohabit the same symbol layer.

Copied from original issue: mapbox/mapbox-gl-style-spec#218

[lucaswoj]

From @jfirebaugh on November 20, 2014 1:31

Given that we need the prefix for symbol properties, and we might want to use them for a combination stroked and filled "polygon" type layer as well, I think we should keep them universal.

[lucaswoj]

From @jfirebaugh on January 30, 2015 19:44

Keeping these for now.

[lucaswoj]

From @1ec5 on December 21, 2016 22:59

Dropping the redundant prefixes would be highly desirable for the iOS and macOS SDKs, where property names are expected to be grammatical: mapbox/mapbox-gl-native#6577 (comment). As of mapbox/mapbox-gl-native#7457, we have to twist the English language in weird ways to ensure that Boolean property names in particular use the right parts of speech.

[1ec5]

More motivation for dropping prefixes on iOS and macOS: https://swift.org/documentation/api-design-guidelines/#omit-needless-words

In mapbox/mapbox-gl-native#6577 (comment), we discussed dropping them just from the iOS/macOS runtime styling API, which wouldn’t have required any changes to the style specification, but there was no consensus. Doing so now would require a major version bump for the iOS SDK.

[jfirebaugh]

Closing here; see #6584.