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imgui weirdness on Ubuntu: small text, white flashes #190

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@rntz

In vanilla knausj on Ubuntu 20.04 on my machine, imgui windows sometimes behave weirdly. I can't get a consistent repro, but if I try running commands such as format help, format recent, help active, etc. enough I eventually experience either one or both of the following:

  • The text is displayed far too small to be readable. I don't think this is an imgui.scale issue.

  • There is a brief white flash, I think on the whole screen, before the imgui window is displayed.

Here is a screenshot of the small text issue, in which there are two imgui windows of normal size displaying help search & recent formatters, and one tiny-unreadable-text one mid-screen, slightly above the "recent formatters" window, to the right of the word "fixed" in Slack chat:
Screenshot from 2020-12-25 12-02-17

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