As cool as the Steam Deck looks with RGB lighting, you might not want to attempt to mod your device just yet. One Reddit user who tried the mod found that while adding the RGB LEDs doesn’t draw a significant amount of power from the battery, it can cause pretty big issues with the Steam Deck’s motherboard.
The “RGBDeck” mod started making the rounds on Reddit earlier this month, with u/WUBBSY documenting the process of affixing a small microcontroller and LED strips to the device. They topped it off with a transparent backing from JSAUX, allowing the lights to shine through the case while the Steam Deck’s switched on. The end result gives the Steam Deck a nice pop of color (in a very gamer PC kind of way).
Source: TheVerge