Make separate layers for buttons, canvas, and images
Switch to antimony window on startup
Add buttons to layers object
Moving view tool to above canvas
Set mask on ViewTool so that only buttons block clicks
Rename Layers to Container
Merge branch 'layered-layout'
Basic function to display coordinates on the canvas
Do newlines work in drawText?
Get mouse position and draw two lines of text
Merge branch 'show-coordinates'