Default widget still there

Hi,
Thank you for this beautiful theme!

I can’t get the Default widget to disappear as it says it would do once the new widgets were added… how do I get rid of default widget text?

I’d like to use the menu on top, as well as have the pages linked to their urls in the 3 columns below header. However, the url’s in the columns are in a hard to see white font. Also I’d like the images to align (justify) with the text. Now they are flush left.

Can the white url font color be changed and the alignment align?

https://www.mainetcoeur.com/

thank you!