Programmer Job in Boulder, Colorado

Change the look of our website popup. The website is a WordPress site with a custom theme and the popup utilizes Thrive Leads to subscribe visitors to emails if they chose to. (Classic "type in your email here for subscription" popup.) We like the way it functions and only want to change the appearance of it...Fonts and colors and make it look less outdated. Someone familiar with WordPress, Thrive Leads, and coding popups would be great! I'm familiar with Photoshop and can design a template if needed but know little about coding! Would like someone in Boulder, CO. Thanks!