Color bucket tool

The color bucket tool offers a precise mechanism to recolor raster image regions by seed color with a controllable tolerance. It is designed for designers and developers who need consistent color updates across assets. The tool analyzes pixel colors, expands from a seed pixel, and replaces matching colors with a chosen replacement, preserving non-matching areas. Conceptually, it separates a target area from its surroundings based on color similarity and connectivity, enabling batch recoloring without manual mask creation. Use cases include applying brand palettes to icons, updating UI sprites for themes, and producing variant assets for different platforms.
It operates on standard RGB color space (sRGB) and outputs a PNG image that preserves transparency where present. Core options—seed color, replacement color, tolerance, and adjacency mode—allow users to balance edge preservation with fill coverage. The approach emphasizes deterministic results: same inputs yield identical outputs, which is valuable for asset pipelines and iteration cycles. Typical beneficiaries are design teams, front-end developers, and product teams that manage visual consistency across components and marketing graphics.
The tool’s value lies in speed, reproducibility, and non-destructive editing when combined with existing workflows. It avoids complexity by focusing on single-region recolor tasks, while still offering enough control to handle edge cases like subtle color boundaries and semi-transparent pixels. This makes it suitable for rapid prototyping, theme testing, and upscale work where pixel-accurate fills are essential.