Odilon – Color Blindness

Finally, a color blindness tool that doesn't ruin your reading experience.

Most accessibility extensions apply a "blanket filter" to the entire screen. While this helps distinguish colors in charts or images, it often tints high-contrast black text into muddy reds or greens, causing significant eye strain during reading.

Odilon is different.

Built by Rhombus Research, this extension uses a "Semantic Segregation" engine. It intelligently targets visual media and interactive elements for color correction while strictly preserving text nodes.

Key Features:

Smart Correction: Applies Daltonization (Machado et al.) only to images, videos, canvas elements, and buttons.
Text Protection: Keeps articles, documents, and code blocks in high-contrast black & white.
Zero Latency: Uses GPU-accelerated SVG matrix filters for instant processing.
Adjustable: Includes a "Correction Intensity" slider (0-100%) and toggles for Protanopia (Red-Blind), Deuteranopia (Green-Blind), and Tritanopia (Blue-Blind).

Why "Odilon"?
This project is the first public release from Rhombus Research, an independent studio exploring the intersection of design tools and accessibility. It is named after the French Symbolist painter Odilon Redon, known for his unique use of color and dreamlike pastels.

Privacy & Security
Odilon is a client-side extension. We do not collect, store, or transmit any user data, browsing history, or page content.

About the Research
This V1 release focuses on "Semantic Stability." Rhombus Research is actively investigating "Perceptual Naturalness" models (Shen et al. 2021) for future updates to bring high-fidelity color restoration to complex images.