Hi there! Just FYI, this is actually the original Hemingway theme, not Hemingway Rewritten from WordPress.com. You can see that by peeking at the stylesheet linked in the browser source:
https://www.oregonsbigwavecafe.com/rinehartpharmacy/wp-content/themes/hemingway/style.css?ver=3.9.1
This is the theme author: Theme URI: https://www.andersnoren.se/teman/hemingway-wordpress-theme/
Nonetheless, I am happy to help you. ??
Using a browser inspector, I can see that the site title has the CSS class:
.blog-title
The tagline has the class
.blog-description
The menubar has the class
.blog-menu
You can target any of these elements and make changes with CSS by using those classes.
For example, to change the colour of the blog-description class, you’d use this code:
.blog-description {
color: #bb00bb;
}
Use whatever hex colour code you prefer.
Important:
Don’t edit the theme files directly, otherwise your changes will be overwritten when the theme is updated.
An easy way to add custom CSS is to install the Jetpack plugin and activate the Custom CSS module. You’ll then add your custom CSS in the new stylesheet editor that’ll appear in your dashboard, under Appearance > Edit CSS.
Understanding how to target your site’s CSS will help you make certain design and layout changes. Here are some very helpful posts that will help you customize your site with CSS:
https://dailypost.wordpress.com/2013/07/25/css-selectors/
https://dailypost.wordpress.com/2013/06/21/css-intro/
https://dailypost.wordpress.com/2013/08/29/css-matched-rule-pane/
https://en.support.wordpress.com/custom-design/how-to-find-your-themes-css/
If CSS is new to you, here are some resources for learning more about it:
Good luck!