The theme I’d like to use is Metala.
Being new to wordpress, I experiemented with customizing it. Not happy with the result, I tried to go back to the original Metala design but couldn’t figure out how.
CSS is theme specific. If you have custom CSS and later change themes, you need to delete whatever CSS you have in the Editor, otherwise, you’ll get undesired results.
To ‘reset’ a theme, you need to delete the CSS in the Editor, make sure the “add to existing CSS” radio button is checked, then save. Things should go back to normal.