This worked for me, thanks! For others on 1.4, if it wasn’t clear find the proper <Node> block in your zwcfg_****.xml file to make the suggested edits. I searched my file for “LZW45” to find that block easily.
Result is an adjustable color and brightness light entity along with the other sensor and zwave entities I had prior.
Then I customized the light entity and set supported_features to 177 like @nathanfiscus suggested. Now I have color temp working as well!
Haven’t tried anything more advanced yet with the light, as color and white temp was my primary use case (TV bias light).