Overworld Xperi Theme is a popular gradient theme for Xperia devices. It supports all Xperia devices up to XZ3. The comes with green and blue gradient colors with stellar lines. The icons spice the theme up. It has unique circle line icon and it is minimalist. Check the preview and download button below.
If you don't know to download and apply the theme from link above, you can check this post. You can check other similar or better themes in this site. We have all colloection of Xperia themes.