More box drawing chars

kitty/fonts/box_drawing.py

@@ -307,6 +307,8 @@ def inner_corner(buf, width, height, which='tl', level=1):
 for start in '┌┐└┘':
     for i, (hlevel, vlevel) in enumerate(((t, t), (f, t), (t, f), (f, f))):
         box_chars[chr(ord(start) + i)] = [p(corner, which=start, hlevel=hlevel, vlevel=vlevel)]
+for ch, c in zip('╭╮╯╰', '┌┐┘└'):
+    box_chars[ch] = [p(corner, which=c)]  # TODO: Make these rounded
 
 for i, (a, b, c, d) in enumerate((
         (t, t, t, t), (f, t, t, t), (t, f, t, t), (f, f, t, t), (t, t, f, t), (t, t, t, f), (t, t, f, f),