Icons The Ribbon icon set is in material design using the outline style as the default. The filled or two-tone options can be used as options when the fit the application better. Icon colors should match the Ribbon colors defined in this document. https://material.io/resources/icons/?style=outline Sample Icons from material.io Sample Icons Note : as of the publishing of these guide lines, Ribbon is transitioning from font awesome icons to material.io. Font awesome icons are still acceptable, but are being phased out. 25