‘Ssh! ’ said Egbert quickly. The other man laughed again. 'What a rabbit you are! It’s a pity, because she’s quite a pretty girl. It seems a pity to waste her, but I agree with him that she’s better out of the way. I’ll make up the fire now I’m here. Local colour! And I won’t stop in case Daniels takes it into his pompous head to wonder what I’m doing.’
I know what is local color, but in the above sentence, it seems to have a different meaning or allusion.