If you're tired of the plain old white LED on the Xbox Elite Series 2 Controller's Xbox button, there's a way to change it.
eXtremeRate Scarlet Red Replacement Buttons for Xbox One Elite Series 2 Controller, LB RB LT RT Bumpers Triggers ABXY Start Back Sync Profile Keys for Xbox Elite Series 2 Core Controller
How To Change The Xbox Core 2 And Elite Series 2 Button Color
eXtremeRate Wood Grain Replacement Buttons for Xbox One Elite Series 2 Controller, LB RB LT RT Bumpers Triggers ABXY Start Back Sync Profile Keys for Xbox Elite Series 2 Core Controller 1797 – eXtremeRate Retail
Xbox Elite Series 2 Controller, Xbox Wiki
Xbox Elite Controllers: Controllers That Fit Your Style
Get 30% Off the Xbox Elite Series 2 Core Wireless Controller in Red/Black at Walmart - IGN
NEW: you can now change the color of the guide button on Elite v2 controllers! : r/xbox
Xbox Elite Series 2 Core Controller Color Series Skins/Wraps & Covers – Slickwraps
Xbox Wireless Controller - Wikipedia
Xbox Elite Series 2 Core Controller Color Series Skins/Wraps & Covers – Slickwraps