pro-modeler 1/48 helldiver headly page slats

hi everone , ive seen online photo,s of other modelers helldivers and im confused on what color to paint the interior or underside of the headly page slats . i know the main dive brakes ur red …but not sure about the slats. i,ve seen red ,greenchromate,and none spec ,sea blue …whitch is the right color for this aircraft [*-)]…oh ,im modeling it in the tri- color scheme. thank s, …5 high