The SVG currently renders badly in Firefox:

[oxinabox]

          The SVG currently renders like this in Firefox:

It hasn't always been broken like this I think, and works in Chrome.

Originally posted by @fredrikekre in https://github.com/JuliaLogging/LoggingExtras.jl/issues/79#issuecomment-1642217165

[oxinabox]

This is what it looks like in Chrome

I think firefox changed rendering of SVG recently. until yesterday It rendered even worse in firefox and had the whole thing cropped.

[abraemer]

You can probably close this one for now. For me it looks like your screenshot (Firefox 116.0.2).

[fredrikekre]

Still buggy for me on Firefox 117