Add more themes and rustfmt

assets/themes/kanagawa-dragon.toml

@@ -0,0 +1,23 @@
+name = "kanagawa-dragon"
+
+[colors]
+bg = "#181616"
+fg = "#c5c9c5"
+text_correct = "#8a9a7b"
+text_incorrect = "#c4746e"
+text_incorrect_bg = "#43242B"
+text_pending = "#a6a69c"
+text_cursor_bg = "#2d4f67"
+text_cursor_fg = "#c8c093"
+focused_key = "#c4b28a"
+accent = "#8ba4b0"
+accent_dim = "#282727"
+border = "#625e5a"
+border_focused = "#8ba4b0"
+header_bg = "#282727"
+header_fg = "#c5c9c5"
+bar_filled = "#8ea4a2"
+bar_empty = "#282727"
+error = "#c4746e"
+warning = "#c4b28a"
+success = "#8a9a7b"