Tanbin Islam Siyam Registry of Type Design type designer font engineer Designed Siyam Rupali and Kalpurush, Bengali typefaces developed under the Avro Free Bangla font project. Font developer at OmicronLab. Recipient of Bangladesh's Ekushey Padak award in 2025. O Foundation 2026-08-05 Text text/html rtd-p-000051 https://rtd.theofdn.org/people/tanbin-islam-siyam/ https://n2t.net/ark:54728/rtd-p-000051 Typefaces from and for Bangladesh - Luc Devroye: https://luc.devroye.org/bangladesh.html en Siyam Rupali: https://rtd.theofdn.org/typefaces/siyam-rupali/ Bangladesh CC BY-SA 4.0, https://creativecommons.org/licenses/by-sa/4.0/