Hello Joan,
If the color options is not working in this case, please add the below css codes on Appearance > Customize > Additional CSS if you are using WordPress 4.7 or add the below css codes on Appearance > Customize > Layout/Design Options > Custom CSS.
.page .entry-content a {
color: #f88c00 !important;
}If you want to change the font family, first you need to change the font family where the font family enqueued on acmethemes/core.php and change the font family name on style.css. You have lots of font family options on the theme, we recommend you to use the available font family on the theme. Hope, 100+ font family will help to make your awesome site within a few clicks.
Let us know if you have any further query.
Warm Regards
Acme Supports