The "merge-info" command:
Usage: fossil merge-info [OPTIONS]
Display information about the most recent merge operation.
Options:
- -a|--all
 - Show all file changes that happened because of the merge. Normally only MERGE, CONFLICT, and ERROR lines are shown
 - -c|--context N
 - Show N lines of context around each change, with negative N meaning show all content. Only meaningful in combination with --tcl or --tk.
 - --dark
 - Use dark mode for the Tcl/Tk-based GUI
 - --tk
 - Bring up a Tcl/Tk GUI that shows the changes associated with the most recent merge.
 
Options used internally by --tk:
- --diff12 FILE
 - Bring up a separate --tk diff for just the baseline and local variants of FILE.
 - --diff13 FILE
 - Like --diff12 but for baseline versus merge-in
 - --diff23 FILE
 - Like --diff12 but for local versus merge-in
 - --tcl FILE
 - Generate (to stdout) a TCL list containing information needed to display the changes to FILE caused by the most recent merge. FILE must be a pathname relative to the root of the check-out.
 
Debugging options available only when --tk is used:
- --tkdebug
 - Show sub-commands run to implement --tk
 - --script FILE
 - Write script used to implement --tk into FILE