Twitter iconography has always been a unique and central part of the product's casual and fun identity. Over time, the set became less unified and understandable, so we worked to redesign more than 200 icons.
By using a common grid, stroke width, and volume for each icon we visually unified the entire set. To better communicate inactive and active states we decided to use strokes for an icon’s default state.
Because icons are critical for wayfinding, we also worked closely with our Research team, to make sure they were communicating as intended.