The Eagles have worn black alternate jerseys for several years, but they'll have an added twist to the look on "Sunday Night Football": black helmets. The team tweeted "Dark mode activated" earlier in the week to announce its uniform for the Week 12 matchup against the Packers. MORE: Dark Mode activated Philadelphia Eagles (@Eagles) If you like the black helmets, you're in luck. The Eagles will wear them two more times in their final six games as they pursue a return to the playoffs and a first-round bye. MORE Cam Reddish Jersey : The Eagles are joining a handful of other teams who have experimented with similar styles. The Panthers, Jets, Cardinals, Saints, and Commanders have all matched alternate black helmets with black uniforms this season as they take advantage of new helmet regulations. Here's what the NFL changed to make these helmets po sible: Last offseason, the NFL relaxed a 2013 player-safety rule that limited teams to one helmet. The rule change prompted several teams to introduce alternate and throwback helmets, including the Eagles' black helmets. Thirteen teams have introduced alternate helmets for the 2022 season, and it's po sible more teams follow suit in 2023 with more time to prepare. Black helmets hanging in the Eagles lockers. Will wear them for the first time this Sunday vs. Packers Eliot Shorr-Parks (@EliotShorrParks) Some fans were disappointed that the Eagles introduced black helmets rather than throwback Kelly green helmets. Owner Jeffrey Lurie said he's working with Nike to recreate a Kelly green helmet and jersey, but it won't be ready until 2023. (Getty Images) MORE: Will that mean the black helmet is a one-year wonder? Lurie has said he hopes the NFL will relax the rule even further to allow for multiple alternate helmets. The Eagles last donned the Kelly green look in 2010. Trae Young Jersey