sl0ppty: the squares are back for zoom

□ and ▣ read as a pane and a filled pane, which is what zoom does to one; [] and
][ were only ever a hedge against a spacing problem that turned out to be
elsewhere. Minimise and close stay as the underscore and the x, so the row is
_ □ x.

The measured button width stays, which is what makes the choice free: a mark of
any width can go in there now, including the two-character ones, so the config
note is about how a glyph *looks* beside its neighbours rather than about what
will fit.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/config.c b/src/config.c
index 7dd12b7..6253f08 100644
--- a/src/config.c
+++ b/src/config.c
@@ -172,8 +172,8 @@ void config_defaults(config_t *c) {
   c->title_align = ALIGN_CENTER;
   c->title_inset = 2;
   c->pane_buttons = true;
-  snprintf(c->zoom_mark, sizeof c->zoom_mark, "[]");
-  snprintf(c->zoom_on_mark, sizeof c->zoom_on_mark, "][");
+  snprintf(c->zoom_mark, sizeof c->zoom_mark, "\u25a1");
+  snprintf(c->zoom_on_mark, sizeof c->zoom_on_mark, "\u25a3");
   snprintf(c->close_mark, sizeof c->close_mark, "x");
   snprintf(c->min_mark, sizeof c->min_mark, "_");
   c->bell_indicator = true;