Google updates Docs, Sheets, and Slides Android apps with new look
The visual improvements mentioned by Google include a restyled document list, highly-legible typefaces, consistent controls, and updated icons all over the place. Google also announced that the redesign has already made its way to the latest versions of Docs and Slides for Android.
On the other hand, the new design will roll out to Sheets on Android sometime today, so expect the new visual improvements to pop up very soon. The most recent Docs, Sheets and Slides Material redesign update is part of a larger effort to bring consistency to the look and feel of Google's G Suite apps.
Although these updates are now being rolled out globally to all Android devices, it will take up to two weeks to appear for everyone, so be patient if the changes aren't yet available for you.