Android device icon Yellow and Blue

dynamicDigital

Hi,

Some of my android devices show a yellow icon, and i cannot knwo if they are online or offline it is just yellow. Meanwhile i have some other android devices (from manufacturer that embedded teamviewer) that show blue like all other devices when online. i suspect i may be installing the wrong app on my android device ? Should I change some settings ? I use it mostly for digital signage, and so knowing if a device is onlien is very important to me.