Agent skill

Image Region Remove Key Color App

Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection.

MITAuto-check passedGame Development

Install Image Region Remove Key Color App

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .claude/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .claude/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .agents/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .agents/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .cursor/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .cursor/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/godot-fun/gai.git --path .agents/skills/image-region-remove-key-color-app

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .gemini/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .gemini/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .github/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .github/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install godot-fun/gai image-region-remove-key-color-app --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/godot-fun/gai.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/image-region-remove-key-color-app .opencode/skills/image-region-remove-key-color-app && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "image-region-remove-key-color-app" agent skill from https://github.com/godot-fun/gai/tree/main/.agents/skills/image-region-remove-key-color-app into .opencode/skills/image-region-remove-key-color-app/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "image-region-remove-key-color-app", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: image-region-remove-key-color-app
GitHub stars: 183
Token cost: ~1.4k tokens
SKILL.md length: 534 words
Files: 1
Skills in repo: 36
Repo updated: Oct 10, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection.

Works in 7 steps: Upload the image via the file control… → Transparent areas appear as gray in the… → Paint over local white / chroma patches… → …
Enclosed white islands remain after border/both keying
SKILL.md covers Rules, Setup (first run), Quick Start and UI workflow, plus 6 more sections
Calls python and pip

What it does

Image Region Remove Key Color App is an agent skill from godot-fun/gai. Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection. Use when enclosed white islands remain after border/both keying, for localized white-background cutout, paint-to-erase chroma patches, or selective color-key cleanup before Godot sprite import.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Game Development, covering Game development and Model hubs and datasets. It works with Gradio, Godot and Python. The repository describes itself as: A lightweight AI agent and skill workflow framework built with Godot. The licence is MIT.

When your agent uses it

Enclosed white islands remain after border/both keying
For localized white-background cutout
Paint-to-erase chroma patches
Selective color-key cleanup before Godot sprite import

Example prompts

“/image-region-remove-key-color-app”

Requirements

Python 3

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

Upload the image via the file control (or preload via CLI) — do not drop into the editor canvas.
Transparent areas appear as gray in the editor (download still has real alpha).
Paint over local white / chroma patches to remove.
Choose Key color / tolerance / feather if needed.
Click Apply → preview (gray = transparent).
Click Download → browser download with the original name.
Click Stop server when done (or Ctrl+C in the terminal).

What it can do on your machine

Read from SKILL.md and the folder at commit 6394686. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- python
- pip
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pip, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Image Region Remove Key Color App loads about 1.4k tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 534 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~90
When it runs · the whole SKILL.md, loaded when a task matches: ~1.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from godot-fun/gai at commit 6394686, republished under its MIT licence (© godot-fun). 534 words, ~1,443 tokens.

Download SKILL.mdSave it as .claude/skills/image-region-remove-key-color-app/SKILL.md (or your agent's skills folder).

name: image-region-remove-key-color-app
description: Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection. Use when enclosed white islands remain after border/both keying, for localized white-background cutout, paint-to-erase chroma patches, or selective color-key cleanup before Godot sprite import.

Image Region Remove Key Color App

Paint a region mask in a local Gradio UI, then remove key-color pixels only inside that region (global keying scoped to the brush). Preserves white/light subject pixels outside the paint strokes.

Use after image-remove-white-background when edge flood fill leaves enclosed white islands (e.g. gaps inside a silhouette).

Rules

When this skill applies, read and follow skill-dependency-manager — run scripts as documented, install missing tools into .dependency/.

Run app.py through the image-region-remove-key-color-app manifest entry (.dependency/image-region-remove-key-color-app/.venv/). Never use host python, py, python3, or any interpreter outside .dependency/.
Do not hand-write a one-off Gradio app — use the bundled script at .ai/image-region-remove-key-color-app/app.py.
populated: false is not a reason to skip. Install first, set populated: true, retry the same command.
This skill is interactive: launch the UI, give the user the local URL, wait for them to paint / Apply / Download.

Setup (first run)

From project root:

bash

.dependency/python/python -m venv .dependency/image-region-remove-key-color-app/.venv
.dependency/image-region-remove-key-color-app/.venv/Scripts/python.exe -m pip install Pillow gradio

If python -m venv fails (missing venv / ensurepip), create the env with virtualenv from another populated skill venv, then install packages into the new env:

bash

.dependency/rembg/.venv/Scripts/python.exe -m pip install virtualenv
.dependency/rembg/.venv/Scripts/python.exe -m virtualenv .dependency/image-region-remove-key-color-app/.venv
.dependency/image-region-remove-key-color-app/.venv/Scripts/python.exe -m pip install Pillow gradio

json

"image-region-remove-key-color-app": {
  "populated": true,
  "bin": ".dependency/image-region-remove-key-color-app/.venv/Scripts/python.exe"
}

Use bin/python on Unix.

Quick Start

bash

# Preload an image (opens http://127.0.0.1:7860)
.dependency/image-region-remove-key-color-app/.venv/Scripts/python.exe .ai/image-region-remove-key-color-app/app.py path/to/sprite.png

# Custom port, no auto-open browser (agent / headless)
.dependency/image-region-remove-key-color-app/.venv/Scripts/python.exe .ai/image-region-remove-key-color-app/app.py path/to/sprite.png --port 7861 --no-browser

Download uses the same filename as the source (forced .png). No share / no save-to-disk folder.

UI workflow

Upload the image via the file control (or preload via CLI) — do not drop into the editor canvas.
Transparent areas appear as gray in the editor (download still has real alpha).
Paint over local white / chroma patches to remove.
Choose Key color / tolerance / feather if needed.
Click Apply → preview (gray = transparent).
Click Download → browser download with the original name.
Click Stop server when done (or Ctrl+C in the terminal).

Key color

Use the UI color picker (default #FFFFFF). CLI --preset only sets the initial color and tolerance:

`--preset`	Key color	Default tolerance
`white` (default)	`#FFFFFF`	25
`green`	`#00FF00`	40
`magenta`	`#FF00FF`	40

Show full SKILL.md (228 more words)Show less

Agent workflow

When — user needs selective / painted removal of flat key-color patches; full-image global would damage white subjects; border/both left enclosed islands.
Ensure deps — manifest entry + venv with Pillow + Gradio.
Launch — run app.py with the user image path; prefer --no-browser if the agent cannot open a GUI browser, and print http://127.0.0.1:<port>.
Hand off — tell the user to paint, Apply, then Download (same filename as source).
Verify — after the user confirms download, they are done; do not overwrite sources.
Stop — click Stop server in the UI, or terminate the Gradio process when the user is done.

Defaults

Option	Default	Notes
Download name	same as source (`.png`)	Prepared on Apply via `DownloadButton`
`--preset`	`white`	Match the batch key skill
`--tolerance`	preset-specific	Raise for gray fringes
`--feather`	`2`	Softens hole edges inside the paint mask
`--port`	`7860`	Change if busy
Share	off	`share=False`; no share UI

Troubleshooting

Issue	Fix
Manifest / venv missing	Follow Setup; update manifest
`No paint strokes found`	Brush visibly over the white islands; ensure strokes are on the editor layers
Subject holes outside paint	Only paint the background islands — strokes gate keying
Leftover fringe in region	Raise tolerance by 5–10
Port in use	Pass `--port 7861` (etc.)
Gradio import error	Reinstall in the skill venv: `pip install -U Pillow gradio`

CLI

Copy-paste commands: cli/image-region-remove-key-color-app.md

Full-image / batch keying: image-remove-white-background
AI matting: image-remove-background

Files

Just SKILL.md in .agents/skills/image-region-remove-key-color-app of godot-fun/gai.

Open the folder on GitHubat commit 6394686

Compare with similar skills

Image Region Remove Key Color App next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Image Region Remove Key Color App compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Image Region Remove Key Color App this skillgodot-fun/gai	183	—	~1.4k	Automated safety check: Pass	MIT	yesterday
Text To 3D AssetLaurentiuGabriel/unreal-game-assets-creation-skill	148	—	~2.1k	Automated safety check: Pass	None	2 mo ago
2D Map and Scene Generator0x0funky/agent-sprite-forge	4.4k	—	~2.9k	Automated safety check: Pass	MIT	5 days ago
Godot E2ERandallLiuXin/GodotMaker	550	1 repos	~3.9k	Automated safety check: Pass	Custom licence	24 days ago
GdtoolkitRandallLiuXin/GodotMaker	550	1 repos	~2.2k	Automated safety check: Pass	Custom licence	24 days ago
Hugging Face ZeroGPUhuggingface/skills	11k	2 repos	~4.6k	Automated safety check: Pass	Apache-2.0	3 days ago

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Questions about Image Region Remove Key Color App

What does Image Region Remove Key Color App do?

Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection. Image Region Remove Key Color App is an agent skill from godot-fun/gai. Interactive Gradio UI to paint a region and remove solid key-color background (white / green / magenta) only inside that selection.

When should I use Image Region Remove Key Color App?

Image Region Remove Key Color App fits situations like: enclosed white islands remain after border/both keying; for localized white-background cutout; paint-to-erase chroma patches; selective color-key cleanup before Godot sprite import.

How do I install Image Region Remove Key Color App in Claude Code?

Run `npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a claude-code`. Or copy the skill folder (.agents/skills/image-region-remove-key-color-app in godot-fun/gai) into .claude/skills/image-region-remove-key-color-app in your project. Claude Code loads it when a task matches its description.

How do I install Image Region Remove Key Color App in Codex?

Run `npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a codex`. Or copy the skill folder (.agents/skills/image-region-remove-key-color-app in godot-fun/gai) into .agents/skills/image-region-remove-key-color-app in your project. Codex loads it when a task matches its description.

Can I use Image Region Remove Key Color App in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add godot-fun/gai --skill image-region-remove-key-color-app -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/image-region-remove-key-color-app, .gemini/skills/image-region-remove-key-color-app, .github/skills/image-region-remove-key-color-app and .opencode/skills/image-region-remove-key-color-app in your project.

What does Image Region Remove Key Color App need to run?

Going by SKILL.md and its folder, Image Region Remove Key Color App needs the command-line tools its instructions call (python and pip). Our summary lists: Python 3.

Does Image Region Remove Key Color App access the network?

SKILL.md contains no URLs. Its commands use pip, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Image Region Remove Key Color App safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Image Region Remove Key Color App use?

Image Region Remove Key Color App is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Image Region Remove Key Color App use?

About 1.4k tokens (SKILL.md is roughly 5.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Image Region Remove Key Color App?

Skills that share tags, products or a category with Image Region Remove Key Color App: Text To 3D Asset (LaurentiuGabriel/unreal-game-assets-creation-skill, 148 stars), 2D Map and Scene Generator (0x0funky/agent-sprite-forge, 4.4k stars), Godot E2E (RandallLiuXin/GodotMaker, 550 stars) and Gdtoolkit (RandallLiuXin/GodotMaker, 550 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Image Region Remove Key Color App?

godot-fun (a GitHub organization) maintains it in godot-fun/gai, which has 183 GitHub stars. The repository holds 36 skills in this directory. The repository was last updated on October 10, 2026.

Source: godot-fun/gai on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Image Region Remove Key Color App

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Image Region Remove Key Color App

Rules

Setup (first run)

Quick Start

UI workflow

Key color

Agent workflow

Defaults

Troubleshooting

CLI

Related

Files

Compare with similar skills

Similar skills

More from godot-fun/gai

Related

Questions about Image Region Remove Key Color App