first commit

fish/prev.d/theme.fish

@@ -0,0 +1,6 @@
+set -l theme 'Catpuccin Mocha'
+
+if not set -q fish_current_theme; or not string match -q "$theme" "$fish_current_theme"
+    set -U fish_current_theme "$theme"
+    fish_config theme save "$theme"
+end