christmas black background or banner with fir trees in modern gradient style. christmas tree pattern.

illustration celebration background decoration decorative silhouette celebrate christmas geometric wallpaper undefined abstract carnival december gradient greeting metallic template symmetry element graphic holiday pattern stylish texture magenta cartoon banner design helium liquid poster silver symbol vector violet winter purple circle number flower black color event trees flyer happy paper party style petal brand organ lilac 2024 card tree year font pink line text fir new art screenshot toy