Add powerline-block-gray tmux theme

tmux/themes/powerline-block-gray.tmuxtheme

@@ -0,0 +1,63 @@
+# Status update interval
+set -g status-interval 1
+
+# Basic status bar colors
+set -g status-fg colour238
+set -g status-bg colour233
+
+# Left side of status bar
+set -g status-left-bg colour233
+set -g status-left-fg colour243
+set -g status-left-length 40
+set -g status-left "#[fg=colour232,bg=colour245,bold] #S #[fg=colour245,bg=colour240,nobold]⮀#[fg=colour233,bg=colour240] #(whoami) #[fg=colour240,bg=colour235]⮀#[fg=colour240,bg=colour235] #I:#P #[fg=colour235,bg=colour233,nobold]⮀"
+
+# Right side of status bar
+set -g status-right-bg colour233
+set -g status-right-fg colour243
+set -g status-right-length 150
+set -g status-right "#[fg=colour235,bg=colour233]⮂#[fg=colour240,bg=colour235] %H:%M:%S #[fg=colour240,bg=colour235]⮂#[fg=colour233,bg=colour240] %d-%b-%y #[fg=colour245,bg=colour240]⮂#[fg=colour232,bg=colour245,bold] #H "
+
+# Window status
+set -g window-status-format " #I:#W#F "
+set -g window-status-current-format " #I:#W#F "
+
+# Current window status
+set -g window-status-current-bg colour245
+set -g window-status-current-fg colour232
+
+# Window with activity status
+set -g window-status-activity-bg colour243 # fg and bg are flipped here due to
+set -g window-status-activity-fg colour233 # a bug in tmux
+
+# Window separator
+set -g window-status-separator ""
+
+# Window status alignment
+set -g status-justify centre
+
+# Pane border
+set -g pane-border-bg default
+set -g pane-border-fg colour233
+
+# Active pane border
+set -g pane-active-border-bg default
+set -g pane-active-border-fg colour238
+
+# Pane number indicator
+set -g display-panes-colour colour233
+set -g display-panes-active-colour colour245
+
+# Clock mode
+set -g clock-mode-colour colour240
+
+# Message
+set -g message-fg colour232
+set -g message-bg colour245
+
+# Command message
+set -g message-command-fg colour250
+set -g message-command-bg colour233
+
+# Mode
+set -g mode-bg colour243
+set -g mode-fg colour232