diff --git a/home/dot_config/sway/wallpaper.png b/home/dot_config/sway/wallpaper.png
index 3131cc6..e1c183b 100644
Binary files a/home/dot_config/sway/wallpaper.png and b/home/dot_config/sway/wallpaper.png differ
diff --git a/home/dot_config/sway/wallpaper_old.png b/home/dot_config/sway/wallpaper_old.png
deleted file mode 100644
index 8735296..0000000
Binary files a/home/dot_config/sway/wallpaper_old.png and /dev/null differ
diff --git a/home/dot_zprofile.tmpl b/home/dot_zprofile.tmpl
index 3a7d6ce..82a6034 100644
--- a/home/dot_zprofile.tmpl
+++ b/home/dot_zprofile.tmpl
@@ -2,6 +2,14 @@
 # `$HOME/bin/start-agent`
 SSH_ENV="$HOME/.ssh/agent-environment"
 
+function escapeStr {
+  if [ -z "$1" ]; then
+    echo "usage: escapeStr <string>"
+    return 1
+  fi 
+  echo $1 | sed -r 's/([\$"])/\\\1/g'
+}
+
 function start_agent {
     echo "Initialising new SSH agent..."
     /usr/bin/ssh-agent | sed 's/^echo/#echo/' > "${SSH_ENV}"