If you are referring to the option "Preferences > Advanced > Tools/ReplayGain Scanner/Target MP3 alteration volume level (dB)", yes. That option is used only for the "MP3Gain" functionality (Context menu > ReplayGain/Apply xxx ReplayGain to MP3 Data).
What i'm saying is that no matter what target i use, i get the same dB +/- value.
So basically the thing is that the value on the column is the value defined as the playback value, and not the replaygain tool value, which are both different.
The target value for scanner is always 89 dB. The metadata you see in files is always relative to this. You will not see any different numbers for your files no matter what setting you adjust.
Sure, because those columns show the values as stored in the file tags, which are always in reference to 89db regardless of where the playback or mp3 alteration settings are set.