I just recently started working with ImGui. Rewrite compiled game engines to add support for HDR into games that never supported it? Sure, easy. I can mod most games in an hour if not minutes.

Make the UI respond like any modern flexible-width UI in the past 15 years? It's still taking me days. All of the ImGui documentation is hidden behind closed GitHub issues. Like, the expected user experience is to bash your head against something for hours, then submit your very specific issue and wait for the author to tell you what to do if you're lucky, or link to another issue that vaguely resembles your issue.

I know some projects, WhatWG for one, follow the convention of, if something is unclear in the documentation, the issue does not get closed until that documentation gets updated so there's no longer any ambiguity or lack of clarity.