I recently picked up a couple of Diamine inks that were labeled as blue, but once they hit the page… they're definitely leaning purple. Beautiful colors, don't get me wrong, but not quite what I was aiming for. idk is this science fiction or has anyone here successfully tweaked ink colors to bring out more of the blue tones? like maybe an additive or a mixing trick? I know ink chemistry can be touchy, but I'd love to nudge these closer to a true blue if possible