A simple theme that's easy on the eyes. I prefer this lighter grey theme to the default dark grey theme in Blender.
A link to the full size (4K) screenshot of the theme can found in the comment below...
Here's the link to the screenshot of the theme: https://orig00.deviantart.net/ea6d/f/2018/198/f/1/grey_theme_4k_by_highstrangeness-dchin94.jpg
Here's the link to the screenshot of the theme: https://orig00.deviantart.net/ea6d/f/2018/198/f/1/grey_theme_4k_by_highstrangeness-dchin94.jpg