xrdb affecting other X11 windows

I was testing a .Xresource file, by loading it with xrdb when I noticed other X11 windows were affected.

xrdb is the X server resource database utility.

By checking the xrdb status with:

xrdb -query -all

I realised xrdb was affecting all X11 environment!

To reset to previous state:

xrdb ~/.Xresources