GTK uses actions for its own purposes in a number places. These built-in actions can sometimes be activated by applications, and you should avoid naming conflicts with them when creating your own actions.
default.activate | Activates the default widget in a context (typically a GtkWindow, GtkDialog or GtkPopover) |
clipboard.cut, clipboard.copy, clipboard.paste | Clipboard operations on entries, text view and labels, typically used in the context menu |
selection.delete, selection.select-all | Selection operations on entries, text view and labels |
color.select, color.customize: | Operate on colors in a GtkColorChooserWidget. These actions are |
unusual in that they have the non-trivial parameter type (dddd):
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https://developer.gnome.org/gtk4/4.0/ch06s07.html