Using DTXBMP

I've added RAF roundels to the wings of Mike Stone's Curtiss AT9 Jeep & saved as
Extended 256 colour & the shine remains.
I've saved the fuselage after adding red/white/blue fin flashes as Extended 256 colour but the shine has gone & it's now a dull grey. Can someone tell me why? How do I get the shine back?
Thanks.
Extended 256 colour & the shine remains.
I've saved the fuselage after adding red/white/blue fin flashes as Extended 256 colour but the shine has gone & it's now a dull grey. Can someone tell me why? How do I get the shine back?
Thanks.