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The custom modeline builds `mode-line-format` from explicit segments
and skips `minor-mode-alist`, so flycheck's lighter never appears.
That hid error and warning counts even in buffers where flycheck was
auto-enabling (every emacs-lisp and sh buffer).
The fix is Option 4 from the design doc: customize the flycheck
modeline variables, then add a single guarded `(:eval ...)` form to
`mode-line-format`. Five new lines total, two-file change.
`modules/flycheck-config.el` :custom block gets:
(flycheck-mode-line-prefix "🐛")
(flycheck-mode-success-indicator " ✓")
`flycheck-mode-line-color` stays default-t so error / warning counts
pick up their faces automatically.
`modules/modeline-config.el` `mode-line-format` gets an `(:eval ...)`
between the recording indicator and `cj/modeline-vc-branch`:
(:eval (when (and (mode-line-window-selected-p)
(bound-and-true-p flycheck-mode))
(flycheck-mode-line-status-text)))
The `mode-line-window-selected-p` guard mirrors `cj/modeline-vc-branch`
and `cj/modeline-misc-info` -- segments hide in inactive windows.
The `bound-and-true-p flycheck-mode` guard keeps the form silent in
buffers where flycheck hasn't loaded or isn't enabled, which is
safer than referencing `flycheck-mode` directly.
The `(:eval ...)` is inline rather than a named `defvar-local`, so no
addition to the risky-local-variable list is needed.
`tests/test-modeline-config-flycheck-segment.el` -- 3 smoke tests
asserting the segment is present and both guards are in place. All
existing tests stay green.
Manual verification (per the design doc) is the user's call -- the
emoji prefix and the colored count behavior need a running GUI Emacs
to observe.
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