I requested help at Commons for this. Thanks.

Surprise! @Esbardu has already prepared all the needed files, and the community has already decided what logo they want.

Logos

• https://commons.wikimedia.org/wiki/File:Wikcionariu_logo_ast_cl%C3%A1sicu.svg (traditional version)
• https://commons.wikimedia.org/wiki/File:Wikcionariu_logo_ast_modernu.svg (tiles version, chosen by the community)

Consensus

https://ast.wiktionary.org/w/index.php?title=Wikcionariu:Votaciones&oldid=143553#Logo_anov.C3.A1u_.28SVG.29_pal_Wikcionariu

PNG version of the logo

Change 280057 had a related patch set uploaded (by Dereckson):
Logo for ast.wiktionary

https://gerrit.wikimedia.org/r/280057

Hello, yes, you can proceed with the change. Thank you very much, greetings!

Change 280057 merged by jenkins-bot:
Logo for ast.wiktionary

https://gerrit.wikimedia.org/r/280057

The logo has been deployed.

@Esbardu There is currently a legacy entry in MediaWiki:Common.css preventing the configured logo to be displayed. You can discard it to get the new logo.

Done!