made the output textview non-editable
tool can now locate the app bundle

and opt formatting changes
ignore
setting the example files to 'locked' in dist script

otherwise with autosave you end up scribbling all over the examples
folder when you start experimenting
folder cleanup
added more color prefs to the editor and updated Find
switched to HUD appearance
return focus to editor after run

also got a speedup by setting the doc window’s backing location to the
video card

note the stub of restorable-window support (which can’t be continued
until system-pyobjc supports the
restoreDocumentWindowWithIdentifier:state:completionHandler: selector)