Blue Topaz
You can also try this theme, Blue Topaz.
Have a look
Download
You can download from https://github.com/whyt-byte/Blue-Topaz-with-Andy-mode_Obsidian_css.
Update
You can find the changelog here.
Thank your 謝謝你
别客气。enjoy！
How to have one single line instead of that 
Maybe you used some plugins or activated some snippets. The information you provided is not enough, so it’s hard to say how to fix that.
And actually, this sub-theme is no longer being maintained.