Does Mojave blend the colours you set in Accents and Highlights to create a third colour, or is the appearance of a third colour just a bug?
Finder
Accent is blue, Highlight is orange. So what the hell are those menus doing in purple?
Searching for third party Quick Actions, I came across the excellent Yoink, the only app which seems to have solved them. Or has it?
Unsupported by developer documentation or Xcode, Quick Actions can only be seriously useful when reversible. Or are they just an embellishment to Finder?
Hard links can’t be readily distinguished by macOS or the Finder, and can lead to strange anomalies, as they’re seen as additional files, not links.
The built-in Quick Actions and those bundled in installed apps are managed by the daemon pkd, and PlugInKit. Not so Automator workflows, though.
The problem of Undo is a major consideration when building or using any Quick Action, Automator workflow, AppleScript, or other lightweight solution.
Have you noticed odd circular icons against files which you have just copied, and they won’t go away? Maybe it’s this odd Finder bug.
Making your own Quick Actions in Automator is very simple, provided that it has the actions built in or provided with apps which can do the task.
One of the significant features of Mojave, Finder Actions deliver significant features without you having to open an app.Are they extensions, and where are they installed?
The Eclectic Light Company 