[Free + Open-source] Core is timeless, like the Helvetica font or The Beatles. With its minimalist design and neutrality, it can adapt to any layout. The Duo style is perfect for projects that require differentiation between actions, using color to convey meaning effectively. It also allows you to customize the line thickness. All Core Duo icons are designed on a 14px grid with a 1px default stroke and two customizable colors. Licensed under the Creative Commons - CC BY 4.0 – Made by Streamline