App: JSTColorPicker
Developer: 征 吴
Genres: Productivity, Developer Tools

Select colors, coordinates, and regions from PNG/JPG screenshots from PNG/JPG screenshots.

## Main Features
- Image Annotation
- Image Labeling/Tagging
- Image Comparison
- Annotation Printing

## Features
- Annotate colors, coordinates, and regions from PNG/JPG screenshot documents.
- Read/write annotator data from the EXIF dictionary of PNG/JPG.
- Apply custom templates (e.g. PASCAL VOC) between documents to copy or export annotator data.
- Get screenshots directly from iOS devices (optional, requires component installation from outside the App Store).

## Special Features
- Full-fledged supports for Magic Trackpad, Magic Mouse, and common mouse to increase your image annotation efficiency.
- High Accuracy: Zoom up to 256x, pixel-level grid-like annotation accuracy.
- Tag Database: Support custom colored tags, support right-click drag and drop for quick labeling.
- Tag Migration: Migrate annotations between documents of the same size by copying and pasting.
- Smart Trim: Use the Canny edge detection algorithm to quickly crop rectangular selections.
- Difference Analysis: Analyze and display the differences between different screenshots.
- Sidebar: Multi-color inspector, thumbnail preview, a quick preview of multiple templates.
- Shortcuts: Complete shortcut supports.

Release notes:
## New Features
- Tag Manager: You can switch between selected tags with keyboard shortcuts.
- Tag Manager: Added read-only mode, and you can lock the tag list to prevent them from being accidentally modified.
- Help: Removed outdated local documentation and updated online help.

## Improvements
- Main Scene: Optimized the interaction of Smart Magnify.
- Info Panel: Click on the message text to select the full content.
- Tag Manager: You can drag and drop tags to the annotation list on the left.
- Tag Manager: Optimized user interactions when dragging and dropping tags.
- Device Screenshot: Taking screenshots from iOS devices is now possible without Xcode (optional, requires extra installation outside the App Store).
- Localization: Added tooltips to more operations.

## Bug Fixes
- Annotations: The order of custom associated values was not stored.
- Input Devices: Pressing the middle mouse button caused the app to crash.