- uid (uid of current user) [argument: NULL]
- username (username of current user) [argument: NULL]
- vol_perc (alsa volume and mute status in percent) [argument: soundcard]
-- wifi_perc (wifi signal in percent) [argument: wifi card interface name] */
+- wifi_perc (wifi signal in percent) [argument: wifi card interface name]
+- wifi_essid (wifi essid) [argument: wifi card interface name] */
static const struct arg args[] = {
/* function format argument */
{ wifi_perc, "wifi %4s | ", "wlp3s0" },