sl0ppty: plain ASCII for the frame's buttons

_ for minimise, # for zoom, * for the way back, x for close.

Box-drawing and block characters were each tried and each looked unevenly
spaced, which is the answer: the cells are even every time, and what differs is
how much of its own cell a glyph fills. That is a property of the font, not
something to be fixed from here, and single-width ASCII of a similar weight is
the way to stop asking the question.

The measurement stays, so a mark is still yours to change and may be more than
one character. The config note now says what the three attempts established
rather than what I expected each time.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/config.c b/src/config.c
index 6253f08..7159d47 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, "\u25a1");
-  snprintf(c->zoom_on_mark, sizeof c->zoom_on_mark, "\u25a3");
+  snprintf(c->zoom_mark, sizeof c->zoom_mark, "#");
+  snprintf(c->zoom_on_mark, sizeof c->zoom_on_mark, "*");
   snprintf(c->close_mark, sizeof c->close_mark, "x");
   snprintf(c->min_mark, sizeof c->min_mark, "_");
   c->bell_indicator = true;