Lines and shapes that you draw in Adobe InDesign have a solid stroke by default. Depending on what type of design you are doing, you may wish to have thinner, thicker, dotted or dashed styles. Use ...

Update 8/20: YouTube’s outline-style icons appear to be more widely rolling out on the web today. Compared to what appeared in March, Google has tweaked the lines to be bolder and brighter.

YouTube explains thinking behind outline-style icon redesign. Abner Li | Mar 23 2023 ... so that users across different languages and cultures can understand and navigate our products.