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...
Unfortunately, there are no photos or links to screenshots in our chat. Could you kindly provide or share a link to the 4K screenshot of the theme you mentioned? I'd be pleased to check into it once I've seen the photograph slope 2. Providing a visual reference will allow me to better comprehend the topic you are expressing and give more relevant input.
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