I think you will have to follow all the explanations in that README starting at https://github.com/budparr/gohugo-theme-ananke#getting-started to modify it to your wishes. The status you get after following the quickstart only installs the theme with a couple of default settings. Fonts, hero image and so on need to be changed after that.
Maybe the theme should show in their README file how it looks like without any modifications after installation before it shows what you can achieve with it.