You can upload custom font to your Shopify store to use in Zeno Builder.
You need to have the font file (supported formats: WOFF, WOFF2, TTF, OTF) on your computer.
Inside Shopify Admin, go to Settings > Files, and upload the font file, copy the file URL.
Go to the theme's main CSS file (usually named base.css, theme.css, styles.css, and other variations) and declare the font
font-family: "Font name";
src: url("Font file URL");
Now you can add the font in the Font Manager of Zeno