@finos/perspective-viewer/dist/less/fonts.less

@import (css) url("https://fonts.googleapis.com/css?family=Material+Icons");
@import (css) url("https://fonts.googleapis.com/css?family=Open+Sans"); // ~typeface-open-sans/index.css");
@import (css) url("https://fonts.googleapis.com/css?family=Roboto+Mono"); // ~typeface-roboto-mono/index.css");