The NUMBERS were the origin: This font has been created from the design of glyphs 0, 2 and 4, which was then extrapolated to the rest of the characters. Unicase with alternates. Thanks @AidenFont for the vertical stripes idea.
For Sándor. The font has upper and lower case. Having 'played' with the baselines for the letters I decided that this font looked better with LC letters aligned at the top rather than on the base line. The font has basic Latin and most glyphs of the more Latin set, and I added the Polish diacritics.