imgui weirdness on Ubuntu: small text, white flashes

[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:

[rntz]

It might be worth noting that one imgui window that doesn't seem to be affected by this is my command history window, which I keep open all the time. That seems to consistently have text of the right size. But in vanilla knausj if I repeatedly open & close it sometimes it exhibits the problem too. Maybe it has something to do with opening the command history window during startup?

[knausj85]

For what it's worth, I see a flash reliably on Mac OS X 11.1, Macbook Pro 2019, when the first imgui is opened.

• Cold start talon
• "format help" command

Haven't seen this on Windows.

[lunixbochs]

fixed in v0.1.4