Press and hold the MENU (3) button to enter the main menu.
Rotate the controller (6) to select the Reticle & Zeroing menu item.
Press the MENU (3) button briefly to enter the Reticle & Zeroing submenu.
Rotate the controller (6) to select the Reticle Color submenu.
Press the MENU (3) button briefly to enter the Reticle Color submenu.
Rotate the controller (6) to select one of the colour options for the reticle: Black/Red, White/Red, Black/Green, White/Green, Red, Green, Yellow, Blue, Orange, Black/White, White/Black.
Press the MENU (3) button briefly to confirm the selection.