French has the fleur De lies which, although it was a symbol of French royalty is still used on the flag of Quebec and some places in Canada identify the French language option with the flag of Quebec.
Realistically, the best option would just be a shorted abbreviation of the language in that language. Ex. Eng for English and deu for German
There is a set of ISO codes for each language, but it’s not catchy used as an icon, and are also implicitly Western-centric by virtue of using the Latin alphabet.
French has the fleur De lies which, although it was a symbol of French royalty is still used on the flag of Quebec and some places in Canada identify the French language option with the flag of Quebec.
Realistically, the best option would just be a shorted abbreviation of the language in that language. Ex. Eng for English and deu for German
There is a set of ISO codes for each language, but it’s not catchy used as an icon, and are also implicitly Western-centric by virtue of using the Latin alphabet.