BlueGriffon 3.0.1 64-bit

"Open With..." works again. On OS X and Linux, it can now open multiple files at once.
Fixed issue in Project Manager.
Thumbnails were inverted in the Templates Manager.

New features:
Responsive Design (for Basic and EPUB licenses).
Color buttons are back, per user request.
It's now possible to hide/show most toolbars.
Other important changes:
Drag-and-drop of an image from Finder/File Explorer now links to the image instead of creating a data URL.
"Restore previous session" feature dropped.
Major bug fixes:
Fix for crasher in OS X colorpicker.
Fix for broken shortcuts.
Fix for undesired markup appearing in liveview (source part).
Fix for broken command line handler.
Fix for broken spellchecker dialog.
Because of a change in Mozilla Gecko, a CR at the end of for instance a H1 was not creating a P any more; this is fixed.