How to adjust Colorline on a Lowrance unit

Lowrance Colorline controls how bottom hardness will be shown on the screen. Watch as Lowrance Product Expert Jacob Scott adjusts the Colorline setting on an HDS Gen3 multifunction display.

[@8052MikeyD]

I'm trying to find info on how to brighten the screen. I pushed something to make the screen darker, now I can't get it as bright as it was before.

[@rserna801]

Speak english still don't understand