Video Color GradingAdjust brightness, contrast, saturation, and color of video files.

The Video Color Grading tool applies CSS filter functions to the Canvas context using ctx.filter. Brightness, contrast, and saturation are applied via their respective CSS filter functions (brightness(), contrast(), saturate()). Hue rotation uses hue-rotate(). For the preview, the video element itself uses CSS filters for instant visual feedback. During processing, each frame is drawn onto the Canvas with the filter string applied, then captured via MediaRecorder. For more advanced pixel-level adjustments (like individual color channel manipulation or curves), the tool uses getImageData() to access raw pixel data, applies mathematical transformations to RGB values, and puts the modified data back with putImageData(). Temperature adjustments modify the red and blue channels independently.