Basically there is no way to change accent color directly through developer option and as per Samsung,they have said that developer option is "not for the users".
So there is a way to change the accent color.
Goto the settings,
Then display,
Then at ...
Go and tell these word to the illiterate who uses u r **bleep** Exynos processor after years and year and who the hell are u to tell a user whether he or she will use developer option or not..Fix the bug and dont recommend such things because everyon...