Ah yes! I recently changed the highlighter color for both themes in 1.6.3, I just haven't updated the screenshots in the README yet, ahah. But that is the intended color (though I might change them again since I think the color could stand out a bit more as a highlighter).
Oh it's pretty much the same way as I mentioned here, though you'd want to change the $mark-color variable in the .scss files or the background property in the mark rule directly in either the .scss or .css files.
Ah yes! I recently changed the highlighter color for both themes in 1.6.3, I just haven't updated the screenshots in the README yet, ahah. But that is the intended color (though I might change them again since I think the color could stand out a bit more as a highlighter).
And thank you, glad you like it!
Originally posted by @aCluelessDanny in https://github.com/aCluelessDanny/typora-theme-ursine/issues/34#issuecomment-526349911