Closest i found was something called "Gadugi" which i had never heard of before. I've tried a few dozen fonts, none of which seems to satisfy the (admittedly) complex requirements above.
to make matters a little more difficult, the average character width would also need to be maintained when applying Windows scaling (meaning the font height gets scaled, by say, 1.25x or 1.5x). optimally, the font would be built-in to Windows (unless there are no such satisfactory fonts). for Arabic characters, they mustn't look 'modernized' (Tahoma, - even Segoe UI - fails here). some of the clients being in Arab countries, the above 2 criteria would need to apply for Arabic characters as well. #MICROSOFT SANS SERIF DOWNLOAD FONT FULL#
the average character width would need to be similar to that of MS Sans Serif, to avoid text overlap of nearby UI controls (or applying a full application redesign, several million lines of code). it is a business application, and numerical readability is primordial. I am trying to find a more modern alternative that would fulfill some criteria: The application I'm working on has been around for over 20 years now, and in some cases still has not updated the UI in some places - the font is one of them, as it uses MS Sans Serif. Originally posted in UserExperience, they recommended I post it here.