The symbolic meaning of the Aboriginal flag colours (as stated by Harold Thomas) are:
Black – representing the Aboriginal people of Australia. Yellow circle – representing the Sun, the giver of life and protector. Red – representing the red earth, the red ochre used in ceremonies and Aboriginal peoples’ spiritual relation to the land.

The symbolic meaning of the Torres Strait Islander flag are: the green panels at the top and the bottom of the flag symbolise the land, while the blue panel in the centre represents the waters of the Torres Strait. The thin black stripes between the green and blue panels signify the Torres Strait Islanders themselves. The white five-pointed star at the centre of the flag represents the five major island groups, and the white dhari (dancer’s headdress) around it also symbolises the Torres Strait Islands people. White symbolises peace, while the star is a symbol for navigation.

The rainbow flag, commonly known as the gay pride flag or LGBT pride flag, is a symbol of lesbian, gay, bisexual and transgender (LGBT) pride and LGBT social movements. Other uses of rainbow flags include a symbol of peace and the colours reflect the diversity of the LGBT community, as the flag is often used as a symbol of gay pride during LGBT rights marches. While it originated in Northern California, the flag is now used worldwide.

Originally devised by San Francisco artist Gilbert Baker, the LGBT rainbow flag design has undergone several revisions since its debut in 1978, first to remove colours then restore them based on availability of fabrics. The most common variant consists of six stripes: red, orange, yellow, green, blue, and violet. The flag is typically flown horizontally, with the red stripe on top, as it would be in a natural rainbow.