The present disclosure provides generating a style configuration file with and without parameters from a library of design values. As one non-limiting example, a website has certain styles that, when defined and combined, creates a full website design, such as, colors, color theme, button style, imagery, text inputs, font style, etc. These styles may be referred to as “top-level styles.” Each “top-level style” is in fact a category for a range of possible inputs or values. The system and method of the disclosure can thus query a library of top-level style values, and with parameters, mix and match these values into “style configuration files.” The style configuration files generated could then be used to produce a design visual by a rendering engine, wherein the design visual would reflect the styles of the values of the top-level styles in a configuration file.