Inconsistant fluid vehicle color

Issue description

In the picture I have here, both vehicles are carrying diesel to the fluid storage, but they're different colors. Neither is attached to a building or have anything different either.

Expected behavior

Same color.

Reproduction steps

I dunno, but I see the darker color sometimes.

Game version

0.4.12

Attachments

I also occasionally see the those. Looks like (hopefully) just a graphics bug. Why is expecting uniform fuel truck appearance tagged a "feature request"?

I'm thinking that along with coloring pipes, they're considering coloring the trucks the same as what they're carrying (or a similar color).