In this recent development sprint, the Umfeld project took a major leap forward by fully reviving the OpenGL 2.0 rendering backend, bringing it up to par with its 3.3 counterpart. This involved reintroducing and modernizing core functionality, including framebuffer management, shape rendering, and texture handling. A consistent rendering interface was established across versions, ensuring that PGraphicsOpenGLv20 and PGraphicsOpenGLv33 now share unified method definitions, while allowing backend-specific implementations. The codebase also underwent extensive refactoring: constants related to OpenGL were centralized in a new PGraphicsOpenGLConstants header, and shape constants were reorganized using enums to improve clarity and maintainability. Immediate-mode rendering in OpenGL 2.0 was streamlined with support for fill and stroke operations, and the rendering mode system (RENDER_MODE_IMMEDIATE, RENDER_MODE_SHAPE, etc.) was standardized across contexts. These foundational changes position the project for easier extension, clearer graphics abstraction, and better cross-version support going forward.