plot: make 8x1 the default glyph geometry

include/notcurses/notcurses.h

@@ -2663,13 +2663,13 @@ API int ncmenu_destroy(struct ncmenu* n);
 // NCPLOT_1x1 has two states: empty and full block. NCPLOT_1x1x4 has five
 // states: empty, the three shaded blocks, and the full block.
 typedef enum {
+  NCPLOT_8x1,   // eight vert/horz levels    █▇▆▅▄▃▂▁ / ▏▎▍▌▋▊▉█
   NCPLOT_1x1,   // full block                █
   NCPLOT_2x1,   // full/(upper|left) blocks  ▄█
   NCPLOT_1x1x4, // shaded full blocks        ▓▒░█
   NCPLOT_2x2,   // quadrants                 ▗▐ ▖▄▟▌▙█
   NCPLOT_4x1,   // four vert/horz levels     █▆▄▂ / ▎▌▊█
   NCPLOT_4x2,   // 4 rows, 2 cols (braille)  ⡀⡄⡆⡇⢀⣀⣄⣆⣇⢠⣠⣤⣦⣧⢰⣰⣴⣶⣷⢸⣸⣼⣾⣿
-  NCPLOT_8x1,   // eight vert/horz levels    █▇▆▅▄▃▂▁ / ▏▎▍▌▋▊▉█
 } ncgridgeom_e;
 
 // Plots. Given a rectilinear area, an ncplot can graph samples along some axis.

src/lib/plot.h

@@ -13,13 +13,14 @@ static const struct {
   const wchar_t* egcs;
   bool fill;
 } geomdata[] = {
+  // default is NCPLOT_8x1
+  { .geom = NCPLOT_8x1,   .width = 1, .height = 9, .egcs = L" ▁▂▃▄▅▆▇█",                 .fill = false, },
   { .geom = NCPLOT_1x1,   .width = 1, .height = 2, .egcs = L" █",                        .fill = false, },
   { .geom = NCPLOT_2x1,   .width = 1, .height = 3, .egcs = L" ▄█",                       .fill = false, },
   { .geom = NCPLOT_1x1x4, .width = 1, .height = 5, .egcs = L" ▒░▓█",                     .fill = false, },
   { .geom = NCPLOT_2x2,   .width = 2, .height = 3, .egcs = L" ▗▐▖▄▟▌▙█",                 .fill = false, },
   { .geom = NCPLOT_4x1,   .width = 1, .height = 5, .egcs = L" ▂▄▆█",                     .fill = false, },
   { .geom = NCPLOT_4x2,   .width = 2, .height = 5, .egcs = L"⠀⡀⡄⡆⡇⢀⣀⣄⣆⣇⢠⣠⣤⣦⣧⢰⣰⣴⣶⣷⢸⣸⣼⣾⣿", .fill = true,  },
-  { .geom = NCPLOT_8x1,   .width = 1, .height = 9, .egcs = L" ▁▂▃▄▅▆▇█",                 .fill = false, },
 };
 
 template<typename T>