Apparently, this mapping tool is trickier than I originally thought. Because I gave Kaylena darkvision as standard (because you have to manually switch between them) the tool also gave her low light-vision. The room should be more shadowy than it actually appears to be, but because of Kaylena's low light-vision we can't see it on the map unless I switch it back to normal.
This means I need to be constantly switching back and forth between darkvision and normal-vision, because Kaylena only gets this bonus while in shadow (which she, partially, is). Remind me not to allow another character with situational vision
I'll fix the map soon, so that it includes a normal-vision version of what you guys should see (or not).
EDIT: Apparently, I was wrong again. I had the chandalier set to wrong lightsource. It's fixed now, and all is so much simpler.