Use custom separator symbol

dotfiles/i3/config

 # finds out, if available)
 bar {
         status_command i3status
+        separator_symbol "•"
+        # other suggestions:
+        #     ‧•┇╻╹╹╿═╎╏◆◾║︙⎪∣∕⟘⟙∙∼⦀⦑⦒⦚⧸⧹▓▒░⧻⧺┆˘͡͡ːˌ˷｜･፧።
 }
 
 # bar {