Fix tmux/vim/alacritty colors mess

nvim/colors.vimrc

@@ -1,6 +1,9 @@
 " True color support
-let &t_8f = "\<Esc>[38:2:%lu:%lu:%lum"
+if exists('+termguicolors')
-let &t_8b = "\<Esc>[48:2:%lu:%lu:%lum"
+  let &t_8f = "\<Esc>[38:2:%lu:%lu:%lum"
+  let &t_8b = "\<Esc>[48:2:%lu:%lu:%lum"
+  set termguicolors
+endif
 
 function! s:sonokai_custom() abort
   " Link a highlight group to a predefined highlight group.

tmux.conf

@@ -47,7 +47,7 @@ bind-key C-x setw synchronize-panes
 
 # Better font term
 set -g default-terminal "tmux-256color"
-set -ga terminal-overrides ",*256col*:Tc"
+set -ga terminal-overrides ",alacritty:Tc"
 
 # Neovim said to...
 set-option -sg escape-time 10

vimrc

@@ -40,7 +40,6 @@ set splitbelow
 set splitright
 set tabstop=2
 set termencoding=utf-8
-set termguicolors
 set textwidth=80
 set title
 set ttyfast