• refactoring of the optionsbars (bottom panes) of the transform tools
• add a "lock line orientation" option to the line tool (#369)
• fix shift+f10 action when using a selection tool on mobile
• add an outline to the canvas (#299, #184)
• "fix" the -c option when using Wayland (#377)
• lock image proportions by default when scaling with the numerical inputs
• fix an unexpected way the "crop" tool could expand the selection (#369)
• preview correctly the areas created by a transform tool before applying a change (#396)
• fix when the app starts with a transform tool, and this tool is immediately used and applied
• compatibility with older distributions (Ubuntu 18.04 LTS)
• update several translations