My tmux configuration

tmux.conf

# B A S I C S 

## Replace c-B with c-A
unbind C-b
set -g prefix C-a
bind-key -r C-a send-prefix

# O P T I O N S

## Set 256 color mode
set-option -g default-terminal "screen-256color"

## Number windows starting at 1, renumber as windows are added / removed
set-option -g base-index 1
set-option -g renumber-windows on

## Use vim keybindings in copy mode
setw -g mode-keys vi

## Do not rename windows
set-option -g allow-rename off

# T I T L E  B A R

## Allow the session name in status left to display up to 50 characters
set-option -g status-left-length 50

set-option -g status-left '#[bold] #S#[default] ⡇'

set -g status-fg colour6
set -g status-bg colour4

set -g status-interval 60

# K E Y B I N D I N G S

## Easy reload
bind-key r source-file ~/.tmux.conf \; display-message "~/.tmux.conf reloaded"

## More intuitive pane splitting key-bindings, open all in current path
bind-key - split-window -v  -c '#{pane_current_path}'
bind-key \\ split-window -h  -c '#{pane_current_path}'
bind c new-window -c '#{pane_current_path}'

## Kill windows 
bind-key C-w kill-pane

## Easy resizing of panes with fine and coarse adjustment
bind -n S-Left resize-pane -L 2
bind -n S-Right resize-pane -R 2
bind -n S-Down resize-pane -D 1
bind -n S-Up resize-pane -U 1
bind -n C-Left resize-pane -L 10
bind -n C-Right resize-pane -R 10
bind -n C-Down resize-pane -D 5
bind -n C-Up resize-pane -U 5

## Seamless aviation using vim-tmux-navigator (github christoomey/vim-tmux-navigator)
is_vim='echo "#{pane_current_command}" | grep -iqE "(^|\/)g?(view|n?vim?)(diff)?$"'
bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"
bind -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"
bind -n C-\\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"

#------------------------------------------------------------------------------#
# tmux colors
#------------------------------------------------------------------------------#
# gruvbox:
## COLORSCHEME: gruvbox dark
set-option -g status "on"

# default statusbar color
set-option -g status-style bg=colour237,fg=colour223 # bg=bg1, fg=fg1

# default window title colors
set-window-option -g window-status-style bg=colour214,fg=colour237 # bg=yellow, fg=bg1

# default window with an activity alert
set-window-option -g window-status-activity-style bg=colour237,fg=colour248 # bg=bg1, fg=fg3

# active window title colors
set-window-option -g window-status-current-style bg=red,fg=colour237 # fg=bg1

# pane border
set-option -g pane-active-border-style fg=colour250 #fg2
set-option -g pane-border-style fg=colour237 #bg1

# message infos
set-option -g message-style bg=colour239,fg=colour223 # bg=bg2, fg=fg1

# writing commands inactive
set-option -g message-command-style bg=colour239,fg=colour223 # bg=fg3, fg=bg1

# pane number display
set-option -g display-panes-active-colour colour250 #fg2
set-option -g display-panes-colour colour237 #bg1

# clock
set-window-option -g clock-mode-colour colour109 #blue

# bell
set-window-option -g window-status-bell-style bg=colour167,fg=colour235 # bg=red, fg=bg

## Theme settings mixed with colors (unfortunately, but there is no cleaner way)
set-option -g status-justify "left"
set-option -g status-left-style none
set-option -g status-left-length "80"
set-option -g status-right-style none
set-option -g status-right-length "80"
set-window-option -g window-status-separator ""

set-option -g status-left "#[fg=colour248, bg=colour241] #S #[fg=colour241, bg=colour237, nobold, noitalics, nounderscore]"
set-option -g status-right "#[fg=colour239, bg=colour237, nobold, nounderscore, noitalics]#[fg=colour246,bg=colour239] %Y-%m-%d  %H:%M #[fg=colour248, bg=colour239, nobold, noitalics, nounderscore]#[fg=colour237, bg=colour248] darko@x1 "

set-window-option -g window-status-current-format "#[fg=colour237, bg=colour214, nobold, noitalics, nounderscore]#[fg=colour239, bg=colour214] #I #[fg=colour239, bg=colour214, bold] #W #[fg=colour214, bg=colour237, nobold, noitalics, nounderscore]"
set-window-option -g window-status-format "#[fg=colour237,bg=colour239,noitalics]#[fg=colour223,bg=colour239] #I #[fg=colour223, bg=colour239] #W #[fg=colour239, bg=colour237, noitalics]"
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