As of the recent acquisition by OSClassify (and the community-driven OsclassNexus), the official ecosystem remains active. Always ensure your theme is compatible with the latest Osclass version (8.x+).
If you want, I can:
Always download themes from reputable sources like the Osclass Market or official developer sites. Avoid "nulled" premium themes, which often contain malicious code. osclass free themes
Modern free themes for Osclass often include features typically reserved for paid products: As of the recent acquisition by OSClassify (and