Style
Border Thickness (px)
Label Font Size (px)
Add Rectangle
Width (px)
Height (px)
Label
Fill Color
Add Rectangle
Add Circle
Radius (px)
Label
Fill Color
Add Circle
Selected Shape
Duplicate
Delete
History
Undo
Redo
Canvas
Clear All
File
Save JSON
Load JSON
Zoom
100%
+
−
Reset
Controls:
• Click to select nearest shape
• Drag to reposition (5px threshold)
• Double-click label to rename
• Scroll to zoom
• Middle-click drag to pan
• Ctrl+Z undo, Ctrl+Shift+Z redo
• Ctrl+D duplicate, Del delete