add signal support

config

@@ -8,6 +8,7 @@ interval=5
 [backlight]
 label=☼
 # label=☀,☼,✱,✲,✳,✴,✵,✺
+signal=3
 instance=color
 # instance=color,long
 
@@ -40,9 +41,8 @@ label=⎋
 # to see the single state of BATx where x is the number of your battery in
 # /sys/class/power_supply/BATx you can use the instance=x command
 [battery]
+label=~
 # label=battery
-# label=~
-# ▁▂▃▄▅▆▇█
 # █
 # ▉
 # ▊
@@ -56,10 +56,12 @@ label=⎋
 
 [audio]
 label=◍
+signal=1
 # label=♩,♪,♫,♬
 # separator_block_width=0
 [audio]
 label=◎
+signal=2
 # label=⋓ℹ⋒ⅈ
 instance=mic