Underscores is a starter theme framework designed for developers who want to create custom themes from the ground up. It serves as a clean, minimal foundation that can be modified and extended to suit specific project needs, avoiding the constraints of pre-built themes. This tool is ideal for experienced developers or those learning theme development who prefer full control over their codebase.

• Lean, well-commented templates: The framework includes modern HTML5 templates with clear comments, making it easy to understand and customize without excess code that slows down work.
• Smart CSS organization: Starter CSS in style.css is structured to help developers quickly implement designs, with minimal styles that serve as a base rather than imposing a preset look.
• Custom template tags and functions: Files like inc/template-tags.php and inc/template-functions.php provide reusable code snippets to keep templates clean, reduce duplication, and improve theming efficiency.
• Responsive navigation: A script at js/navigation.js enables toggled dropdown menus for small screens, such as phones, allowing developers to focus on styling without building basic functionality from scratch.
• Flexible layout options: Sample CSS layouts in layouts/ offer starting points for sidebars on either side of content, giving developers a head start on common design structures without locking them into a rigid system.