New Nebulae show their innards

[Treewyrm]

Keep in mind exclusion zones within nebula zones also affect visibility, not only within themselves and nebula but also outside neubla. As a rule of thumb zones that are used for nebula and exclusion zones within nebula should have edge_fraction property which controls transition border depth, which in turn affects camera far plane as well as depth buffer and render order mechanism. Whoever poked around Omicron Delta has probably forgot to add it.