There is built-in feature to made the menu text case sensitive just go to Appearance > Customize > Header there you can find Navigation Uppercase option, uncheck the option and publish.
If you have not edit the footer info manually and used the theme built-in footer info, year will be automatically change by the itself, however if you have edit the footer info manually in the textarea field you have to update the year manually.
To change the title background color login to your dashboard and go to Appearance > Customize > Colors > Elements Color there you can see Site Title Area option to change the site title background color.
