updated theme

fish/functions/fish_prompt.fish

@@ -1,9 +1,13 @@
 function fish_prompt --description 'Write out the prompt'
         set -l last_status $status
         set -l normal (set_color normal)
-        set -l status_color (set_color brgreen)
+        # White at rest, crimson when the last command failed — the prompt
+        # arrow is the one place the shell says "something is wrong", so it is
+        # the one place that earns the accent. Was brgreen/brpurple, which
+        # spent colour on states that are not worth any.
+        set -l status_color (set_color ffffff)
         set -l cwd_color (set_color $fish_color_cwd)
-        set -l vcs_color (set_color brpurple)
+        set -l vcs_color (set_color 6b6b70)
         set -l prompt_status ""
     
         # Since we display the prompt on a new line allow the directory names to be longer.