Nah Chem would be changed to sealant and engineers tools would consist of...wrench, a different type of wrench, sealant, and bucket.
Nah, this time they'd do it right and make all the repair tools wrenches, because having just two isn't confusing enough.
There will be a red wrench and a blue wrench. Red wrenches repair components in the 'blue' state. Blue wrenches repair wrenches in the 'green' state. Components in the 'Red' state must be hit three times with a blue wrench and then 4 times with a red wrench. For a full description on how to go from the 'Red' state to the fully repaired orange state, please read Chapters 7 through 9 of the user manual.