This issue is in reference to the Angular version of Argon Design System. https://www.creative-tim.com/new-issue/argon-design-system-angular **Issue**: Performing `ng build --prod` fails with the following error. ``` 92% chunk asset optimization optimize-css-webpack-pluginAn unhandled exception occurred: Lexical error on line 1: Unrecognized text. Erroneous area: 1: 100% - $icon-size-xl - 1 ^.........^ ```