The translation should be "Zadji jasno sunce". "Jasno" means clear, bright and "sjajan" means shiny. That's why i voted "no". "jasno" is similar with "sjajno", but I thought it's more correct to be "jasno"
I am not sure if adj. "jasno" in serabian means the same as in macedonian language. In serbian "jasno" is rather used as "clearly" and not as adjective but as adwerb added to which in figuartive meaning, for example in phrase: Jasno se izraziti. Originally it meant "bright", but I think that commonly is not used in that meaning, an that it's archaic. That's the reason why I chosed "sjajno", and after all I have a new idea how to translate "jasno"+>"svetlo". Then: "Svetlo sunce, zadji." But as a translation of verse from macedonian folk song "Zajdi, zajdi jasno solnce" in searbian: "Zadji, zadji svetlo sunce".