"The word swastika comes from the Sanskrit svastika, which means “good fortune” or “well-being." The motif (a hooked cross) appears to have first been used in Eurasia, as early as 7000 years ago, perhaps representing the movement of the sun through the sky. To this day, it is a sacred symbol in Hinduism, Buddhism, Jainism, and Odinism. It is a common sight on temples or houses in India or Indonesia. Swastikas also have an ancient history in Europe, appearing on artifacts from pre-Christian European cultures." Source
It is a swastika, just not with red behind it symbolizing as a Nazi symbol, therefore not an offensive image.