Google interface tools API?
I have noticed many similarities between Google products and other apps or websites. Mainly, these similarities are graphical aspects - on the SoloLearn app, some of these are: The circular "+" button on the bottom right of the screen when in the Q&A section (this button can also be noticed on the Google Docs app, to name an example), The circular "refresh" animation from the top of the screen when pulling down on the Activity Feed (this can also be noticed in the Gmail app), The navigational buttons that appear on the top right of the screen in the Activity Feed, such as the account figure, notification bell, and three dots to represent other options (which can be noticed on numerous Google apps, although not always in the top right), and, The wavelike animation that appears on a button or clickable object when it is clicked or pressed, which can be noticed on SoloLearn by navigating to the Code Playground and holding above any given code. What are these graphical similarities? Is Google associated?