Fixed crashes on macOS High Sierra and older operating systems.

Added inverse masks. Fixed intermittent crashes when switching tabs.

Window position and size is retained between sessions. Format selection when saving an image (tiff, jpeg, png, bmp, gif) Fixed handling of input image resolutions other than 96 dpi.

Fixed navigation issue on older macOS versions

Bug fix: compatibility with El Capitan and (High) Sierra

Bug fix: partial transparent pixels were not correctly shown

Bug fix: numeric input field sometimes applies values incorrectly

Bug fix: backwards compatibility with macOS High Sierra and older

Bug fixes: Share button not working. Can't open the example collection twice.

Bug fix: disabled buttons still respond to clicks

Bug fix: missing 'share' icon & results page crashes when in light-mode.

Added Multi Pole features

Feature: reinstated numeric input for mask and vanishing point handles. Bug fix: switching windows and loading/saving files could cause the app to crash.

User interface update

Fixed issue with numeric input fields