Blogger Theme 9 [verified] Official

User experience is paramount. A quality Theme 9 respects the user's OS preferences ( prefers-color-scheme ) or includes a manual toggle for night reading.

Don't use the default fonts. Go to Theme > Customize > Advanced > Page Text . Use Google Fonts pairs. For example: blogger theme 9

Maybe you cannot find a clean copy of Theme 9. Or maybe you want a theme that is inspired by Theme 9 but built for modern standards. Here are the top 3 alternatives. User experience is paramount