There was a thread concerning this EXACT issue before Swanwick opened.
Before Swanwick opened, Controllers had complained bitterly about the font sizes, only to be completely ignored by Management because of the need to save political face and get Swanwick up and running on time (on time, but 6 years late remember !!!!)
In fact, our wonderful "management" had stated, quite openly, that the equipment was not subject to HSE regulations !!!!!!
So now - as always - the truth will out. And yes, I do believe there is a safety issue here.
I hope you pilots continue to read this thread now that it's in the ATC forum.......we NEED you to know just what goes on !!