A-spec, in this case, refers to the whole anattractional spectrum, rather than just aro and ace spectrums. This means omniaspec individuals are also apl-spec, asen-spec, and on the nonaesthetic, analt-spec, atertiary-spec, and other anattractional spectrums.
It's different from panaspec in the sense that panaspec is specifically suptilic a-spec in all attractions, whereas omniaspec encompasses amplusic a-specs, such as mesi asexuals/aromantics, angled aroaces, and those who are on grey areas of the a-spectrum, such as greyplatonics.
The term and first flag were coined by Tumblr user arco-pluris on March 16, 2018.
An alternative flag was devised by FANDOM users frog27 and Octopus27 on July 21, 2021. The first 3 stripes (black, grey, and white) are the same as in most a-spec flags and stand respectively for the lack of attraction, a restricted/conditioned attraction (grey and demi), and the community.
The last stripe represents the lacking/restricted tertiary attraction. The color, brick red, is a mix of the four colors in the tertiary attraction flag (blue, yellow, orange, and pink).
This flag is also called “fireflag”.