The Tcl.sublime-syntax.patch adds first_line_match so bat recognizes
tclsh/wish/expect shebang files as Tcl. With the patch applied, the
leading '#!/...' and '# comment' lines get tokenized as Tcl comments
and rendered in Monokai-Extended's comment color instead of default
foreground.
The goldens were generated against unpatched bat in the original
commit, so CI's 'Run tests with updated syntaxes and themes' job (which
runs assets/create.sh before the regression test) disagreed. Regenerate
against the patched build so the regression test passes.