Sane(r) tmux configuration (requires tpm)

tmux.conf

# Saner leader chord
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

# Saner split commands
bind v split-window -h
bind h split-window -v
unbind '"'
unbind %

# switch panes using Alt-arrow without prefix
bind -n M-Left select-pane -L
bind -n M-Right select-pane -R
bind -n M-Up select-pane -U
bind -n M-Down select-pane -D