Pixelmator 3.9

What's new in this version:

- Pixelmator is now fully compatible with macOS Catalina, including support for Sidecar and Apple Pencil
- A new button to change the visibility of the Layers palette has been added to the Touch Bar
- When showing palettes, they will now appear on the currently active screen rather than the primary display
- Pressure sensitivity when using graphics tablet pens (and Apple Pencil with Sidecar) has been improved
- The Pixelmator extensions for the Photos app have been rebuilt using optimized Swift code
- Brush size by pressure will now scale linearly from 1-100% and algorithmically from 100%-1000%
- It is now possible to open Pixelmator documents with some missing data

Fixes:
- The Tools palette's shortcut menu would sometimes be slightly offset on external displays
- When using vector tools and setting the Stroke slider in the Touch Bar to the minimum value, the arrow buttons in the Tool Options bar would be disabled
- The Continuity camera was not working
- The effect rope would sometimes be displayed incorrectly on external displays
- The color of text would change slightly while creating a new layer and pasting something into the document
- The color of text would change slightly when opening another document with a different color space
- The default orientation of new alignment guides was incorrect
- When clicking the color well in the Rulers Preferences, the Colors window would not appear if it was already open before opening the Preferences window
- Pixelmator would quit unexpectedly when attempting to use the Touch Bar while the trial window was open
- Pixelmator would quit unexpectedly when adding numerical values to the names of layer slices
- Pixelmator would sometimes quit unexpectedly when trying to use the color well in the Fonts palette
- Various fixes improve the stability of Pixelmator