Update zsh/tmux with correct escape sequence passthroughs. Set tmux to xterm-256color.

tmux/.tmux.conf

@@ -65,8 +65,8 @@ set-option -g repeat-time 0
 set -s escape-time 0
 set -g history-limit 50000
 set -g display-time 750
-set -g default-terminal "screen-256color"
+set -g default-terminal "xterm-256color"
 set -g extended-keys on
-set -as terminal-features ",screen-256color:extkeys"
+set -as terminal-features ",xterm-256color:extkeys"
 set -g focus-events on
 setw -g aggressive-resize on

zsh/.zshrc

@@ -13,6 +13,9 @@ setopt HIST_SAVE_NO_DUPS      # don't save duplicates
 setopt SHARE_HISTORY          # share history across sessions
 
 bindkey -e # emacs bindings
+bindkey '\e[3~' delete-char        # Delete key
+bindkey '\e[1;3C' forward-word     # Alt+Right
+bindkey '\e[1;3D' backward-word    # Alt+Left
 
 # Completion
 autoload -Uz compinit && compinit