tmux.conf

# Setting the prefix from C-b to C-a
# and free the original C-b prefix keybinding
set -g prefix C-a
unbind C-b

# Setting the delay between prefix and command
set -s escape-time 1

# Set window and pane indexing to start at 1
set -g base-index 1
setw -g pane-base-index 1

# Reload the file with Prefix r
bind r source-file ~/.tmux.conf \; display "Reloaded!"

# Ensure thar we can send C-a to other apps
bind C-a send-prefix

# Splitting panes using | and -
bind | split-window -h
bind - split-window -v

# Smart pane switching with awareness of Vim splits.
# See: https://github.com/christoomey/vim-tmux-navigator
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
    | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(diff)?$'"
bind-key -n 'C-h' if-shell "$is_vim" 'send-keys C-h'  'select-pane -L'
bind-key -n 'C-j' if-shell "$is_vim" 'send-keys C-j'  'select-pane -D'
bind-key -n 'C-k' if-shell "$is_vim" 'send-keys C-k'  'select-pane -U'
bind-key -n 'C-l' if-shell "$is_vim" 'send-keys C-l'  'select-pane -R'
tmux_version='$(tmux -V | sed -En "s/^tmux ([0-9]+(.[0-9]+)?).*/\1/p")'
if-shell -b '[ "$(echo "$tmux_version < 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\'  'select-pane -l'"
if-shell -b '[ "$(echo "$tmux_version >= 3.0" | bc)" = 1 ]' \
    "bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\'  'select-pane -l'"

bind-key -T copy-mode-vi 'C-h' select-pane -L
bind-key -T copy-mode-vi 'C-j' select-pane -D
bind-key -T copy-mode-vi 'C-k' select-pane -U
bind-key -T copy-mode-vi 'C-l' select-pane -R
bind-key -T copy-mode-vi 'C-\' select-pane -l

# Pane resizing in units of 5 using Prefixes H,J,K,L
bind -r H resize-pane -L 5
bind -r J resize-pane -D 5
bind -r K resize-pane -U 5
bind -r L resize-pane -R 5

# Mouse support - set to on if you want to use the mouse
set -g mouse off

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

# Enable activity alerts
setw -g monitor-activity on
set -g visual-activity on

###############################
#### COLOR (Solarized 256) ####
###############################

# Default statusbar colors
set -g status-style fg=colour136,bg=colour235,default

# Default window title colors
setw -g window-status-style fg=colour244,bg=default

# Active window title colors
setw -g window-status-current-style fg=colour166,bg=default

# Pane border
set -g pane-border-style fg=colour235
set -g pane-active-border-style fg=colour240

# Active pane normal, other panes shaded out
setw -g window-style fg=colour237
setw -g window-active-style fg=colour11

# Message text
set -g message-style fg=colour166,bg=colour235

# Pane number display
set -g display-panes-colour colour166 #orange
set -g display-panes-active-colour colour33 #blue

# Clock
setw -g clock-mode-colour colour64 #green