ngx-chips: Custom theme not possible in 1.6.1 (missing .scss file)

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Current behavior

As the documentation says, in order to make a custom theme we have to import ngx-chips/dist/modules/core/styles/core/_core.scss

In version 1.6.1 this file no longer exists, so trying to import it gives an error.

Expected behavior

To be able to import the .scss file to make a custom theme.

Minimal reproduction of the problem with instructions (if applicable)

Use @import "~node_modules/ngx-chips/dist/modules/core/styles/core/_core.scss";

What do you use to build your app?. Please specify the version

angular-cli 1.6.0

Angular version:

5.1.0

ngx-chips version:

1.6.1

Browser: [all | Chrome XX | Firefox XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView ]

all