No silver. Interiors surfaces of Karas were paint in Polish Khaki like upper fuselage nad wings. Polish fighters like P.7, P.11 and P.24 has silver interior but Karas has large canopy so silver cocpit could be makes visibility from far distance.
This is link to Karas handbook
http://www.old.modelarstwo.org.pl/lotnicze...kcja/index.html
Karas from PWM forum.
http://www.old.modelarstwo.org.pl/forum/vi...asc&start=0