Following a request to look into this in the general LG Volt forums, I did some digging and figured out how they did it over on the G2. This will set your LG Weather widget background to either black or transparent based upon which apk you choose. If anyone wants to know how I did this, just lemme know and Ill post a mini guide in a comment below.
I take no responsibility for you messing your phone up (follow the directions and you will be fine)
NEED:
Root
Root browser app of some sort
USB cable
Transfer either Black-LGWeatherTheme.apk or Transparent-LGWeatherTheme.apk to your internal sdcard, i used adb but you can use mtp/regular plug in phone copy to sdcard method if you want.
Backup your old LGWeatherTheme.apk from /system/app, or dont lol. I didnt, but you can grab a stock copy from the zv4 rom zip if you need it.
Once its on your sdcard, open up a root browser and rename the file to LGWeatherTheme.apk. Then take that apk and copy it to /system/app, set permissions to rw-r-r, and reboot.
Once you reboot, your background for your weather widget will be either black or transparent based upon which apk you chose.
Happy flashing!
Black version
Black-LGWeatherTheme
Transparent version
Transparent-LGWeatherTheme
I take no responsibility for you messing your phone up (follow the directions and you will be fine)
NEED:
Root
Root browser app of some sort
USB cable
Transfer either Black-LGWeatherTheme.apk or Transparent-LGWeatherTheme.apk to your internal sdcard, i used adb but you can use mtp/regular plug in phone copy to sdcard method if you want.
adb push Transparent-LGWeatherTheme.apk /sdcard/
Backup your old LGWeatherTheme.apk from /system/app, or dont lol. I didnt, but you can grab a stock copy from the zv4 rom zip if you need it.
Once its on your sdcard, open up a root browser and rename the file to LGWeatherTheme.apk. Then take that apk and copy it to /system/app, set permissions to rw-r-r, and reboot.
Once you reboot, your background for your weather widget will be either black or transparent based upon which apk you chose.
Happy flashing!
Black version
Black-LGWeatherTheme
Transparent version
Transparent-LGWeatherTheme