1983–1985
1985–1987
1987–1991
1991–1997
1997–2001
2001–2007
In May 2001, read 1983-1985 font version, horizontal and rainbow 6 colors vertical background.
2007–present
On September 15, 2007, the font was different, the heart was middle in rainbow 3 colors vertical, and remove rainbow background and rainbow 4 colors horizontal text.