Add extract-color extension

[anwarulislam]

Description

Extract Color Palettes from Images

Raycast extension that allows users to extract color palettes from images directly through Finder selection.

Features

• Extract dominant colors from selected image file
• Integration with macOS Finder selection

Screencast

Checklist

• I read the extension guidelines
• I read the documentation about publishing
• I ran npm run build and tested this distribution build in Raycast
• I checked that files in the assets folder are used by the extension itself
• I checked that assets used by the README are placed outside of the metadata folder

[raycastbot]

Congratulations on your new Raycast extension! 🚀

You can expect an initial review within five business days.

Once the PR is approved and merged, the extension will be available on our Store.