I've poked around and seen several other threads mentioning this, although I don't believe anything was ever decided. In case the title didn't cover completely what I'd like, I'll be a bit more descriptive.
Under Tools, Effects and Filters, Graphic Equalizer
You're able to select different presets, as well as adjust the sliders to your own liking. The issue I see is that VLC does not allow you to save your settings once you have adjusted the sliders to your liking, and reverts back after exiting. It would be great to have a button on this window somewhere that allows people to create their own Graphic Equalizer presets. Having this feature would save myself (and I'm sure others) the trouble of re-adjusting the Graphic Equalizer to my preferred settings each time I start VLC.