Core Framework is a visual CSS framework and design-token builder for the web, WordPress, and Figma, developed by CoreBunch. It provides a visual editor for semantic colors, light and dark values, generated shades, fluid typography and spacing scales, layouts, reusable selectors, components, utility classes, and design primitives such as radii, borders, shadows, opacity, filters, and transforms. The system calculates responsive type and spacing scales from minimum and maximum values, scale ratios, and naming conventions, then generates standards-based production CSS. Projects can be previewed in the editor and their readable or minified stylesheets can be copied, exported, or downloaded, or saved as portable .core files. The same open-source codebase supports a standalone web app, WordPress, Figma, Gutenberg, Bricks, and Oxygen integrations. The editor is local-first, and the web app, plugin, integrations, and builder add-ons are available under the MIT license without paid feature gates.