I have not created an INI file for this yet, but I have created a few more variables to help you control the behaviour of this app. You can now set the background opacity and draw border in one place, as well as adjust the overall size of the app if you need to scale it up for use with DSR.
From the top of the .PY file:
#THESE ARE VARIABLES YOU CAN CHANGE
maxKMH = 999 #if the KMH is greater than this number hide the steering wheel, default is 999 (always on)
backgroundOpacity = 0.0 #this value can be anything from 0.0 to 1.0, like 0.1, 0.7, etc
drawBorder = 0 #this value can be 0 for off or 1 for on
appWidth = 60 #this can be any value greater than 0, mostly controls app scaling
appHeight = 85 #this can be any value equal to or greater than appWidth
#set this value to true if you are using the PinHack and would like the app background
#to be square, or just set these values in the variable definitions shown above
if False:
appWidth = 60
appHeight = 60
#if you are an NVidia DSR user you'll probably want something like this
if False:
appWidth = 120 #or 90
appHeight = 120 #or 90