blog(create): Customize your avatars in worlds blog

[Goku-kun]

This pull request adds a new blog post draft detailing the engineering behind the avatar customization feature in Codédex Worlds. The post explains the technical challenges and solutions for supporting thousands of unique avatar combinations while maintaining pixel-art quality and real-time previews.

Avatar Customization Feature:

• Introduces a fully customizable avatar system, allowing users to personalize skin tone, hair style and color, outfit style and color, and preview backgrounds, resulting in thousands of unique combinations.

Engineering Solutions:

• Describes the use of multi-shade palettes and pixel-by-pixel color swapping to preserve pixel-art depth and shading when recoloring assets.
• Details the layer compositing approach to synchronize body, hair, and outfit sprites, ensuring animations remain frame-perfect and visually coherent.

Performance and Preview:

• Explains the implementation of a real-time preview system in React, enabling instant avatar visualization without running the game engine, using parallel rendering and palette swapping.

User Experience and Future Plans:

• Outlines the steps for users to customize their avatars and highlights the impact on community identity, with hints at future expansion of customization options.