Grid Texture Drawer is an extension for Blender's Texture Editor that introduces grid-based drawing tools. It allows users to draw lines, rectangles, and polygons directly onto texture maps with built-in grid snapping for precise alignment. The tool includes features for adjusting grid size and line thickness, and supports aligning the drawing grid to specific UV edges by clicking them in the viewport. It is designed to supplement Blender's default texture painting tools, particularly for creating precise, hard-surface, or sci-fi style details without needing external image editors.