Design an interface for a gaming application that seamlessly blends winter and Christmas themes. Incorporate elements such as snow-covered landscapes, festive decorations, and cozy winter vibes. Include iconic winter symbols like snowflakes, snowmen, and evergreen trees adorned with Christmas lights. Additionally, introduce special in-game events or challenges related to the holiday season, allowing players to earn exclusive winter and Christmas-themed rewards. The design should evoke a sense of joy and celebration, creating a captivating gaming experience that aligns with the charm of both winter and the holiday season.