Google is now widely rolling out the Material Redesign of the Play Store. This new update brings the Material design to your Play Store. Also, this design makes the app look more simple, attractive and clean.
For now, Google is testing the new design on the Play Store. The Rating and Review section has been redesigned for now.
Also, if you notice, the rating stars have colors similar to the theme of the app, i.e, if the app has a theme of Cyan, the Rating star will also have Cyan as color.
The Thumbs Up and Down system for rating the review has been changed to Yes and No. There are even many other improvements and changes to the app as well. In the coming days, we might see a complete redesign of the App.