A Manual of Type in UI and in Design System.

Lam Bao
13 min readMay 13, 2019

Typeface is an essential component in any design, it has become a part of our human life for communication purposes. For that reason, Type in UI plays a key role and acts as a UI itself. I would like to walk you through some points that might be helpful for designers working on digital products.
Let’s begin.

A. Type in UI: All about the Specs

Type on Screen or Type in UI is the term used to indicate the type of text that is optimized for display on electronic screens or in the user interfaces (UI). To better understand what criteria Type in UI has to meet, let’s start by understanding the purpose and context of using Type in UI.

SamsungOne — Samsung
Google Sans — Google
Youtube Sans — Youtube

I. Purpose & Context

Please understand that UI is the same with other brand touchpoints (banners…

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Lam Bao

Principal Type Designer & Co-Founder of Yellow Type Foundry