Ladder damaged sprite team color issue

[mugg91]

Current in-game behaviour.

Ladder at full health will have its team color shown in its center, but when it is damaged it will be shown on the top.
It's odd that the color is suddenly elsewhere.

https://github.com/transhumandesign/kag-base/blob/master/Entities/Structures/Ladder/Ladder.png

Make the damaged versions have team color in the center.