stylePreprocessorOptions includePaths in angular-cli.json ignored

IntelliJ seems to support scss @import pretty well, but it appears that it does not recognize the includePaths: 

Given a .angular-cli.json with

"stylePreprocessorOptions": {
  "includePaths": [
    "style-paths"
  ]
},

and a styles.scss with:

@import  'partial';

partial is not recognized, though I have a _partial.scss.  This works when running ng serve, so the configuration appears correct.

I gather I can mark style-paths as a Resources Root, but obviously it would be better if  IntelliJ could pick it up from the configuration.  Is that possible?