Added fix for terminal colors in nested tmux and nvim

fish/.config/fish/fish_variables

@@ -1,6 +1,7 @@
 # This file contains fish universal variable definitions.
 # VERSION: 3.0
-SETUVAR __fish_initialized:3100
+SETUVAR --export TERM:xterm\x2d256color
+SETUVAR __fish_initialized:3400
 SETUVAR fish_color_autosuggestion:4c566a
 SETUVAR fish_color_cancel:\x2dr
 SETUVAR fish_color_command:green

fish/.config/fish/functions/fish_prompt.fish

@@ -59,7 +59,7 @@ function fish_prompt
   __fish_git_prompt " (%s)"
 
   # beginning of new line
-  _print_in_color "\r\n┗" blue
+  _print_in_color "\n┗" blue
 
   # time information
   _print_in_color " "(date "+%H:%M:%S") green

tmux/.tmux.conf

@@ -1,6 +1,7 @@
 # ==========================
 # ===  General settings  ===
 # ==========================
+set-option -ga terminal-overrides ",*256col*:Tc"
 set -g default-terminal "screen-256color"
 
 # Change prefix key to C-a, easier to type, same to "screen"