I've been using HDRLS a number of years and have never had a text display scale problem. I upgraded to Drop 8.2 and the text on my 4K monitors is too small to read. My 4K's are set properly to use Max optimally.
I'm reading that the 'Display Scale' is set with an 'Environment Variable' and or controlled by an 'OCIO' configuration file in 'Windows - C:\Program Files\Lightmap\HDR Light Studio\OCIOConfigs\' On my machine, there is no 'OCIOConfig' in the 'HDR Light Studio' folder.
In 'Preferences' in a running session, 'Display Scale' is grayed out so I can't mofify it.
So, is there any specific documentation to use as a guide? I found a post from Mark saying it was control it with an Environment Variable (HDRLS_SCALE_GUI) but no explanation as to how to properly implement that. https://forum.lightmap.co.uk/discussion/85/hdrlightstudio-on-4k-screen
Update:
After searching my machine I found 'config.ocio' in my custom install location for HDRLS. I assume I add the variable (HDRLS_SCALE_GUI = 2) in it. What's the proper syntax for inserting this line and where?