Sadly, I do not think the dark meter background can be changed and changing the overall display to 'light' does not make any difference as it did in SF12>15, Starting with SF-16, the meters were messed up and the legacy FS peak meter was completely removed in SF-17. In addition, third-party 32 bit VST-2 plug-ins could not be displayed properly in SF 16 & 17 either, making adjustment impossible.. this VST-2 issue was fixed for the most part with SF-18, but remains in SF 16-17 and the same issue persists in Vegas. The legacy peak meter appeaence was brought back in SFP-18, but it is not the same and cannot be 'shrunk' down as before, nor does the numerical high peak display properly.