What is the bug or the crash?

Hi there,

I came across #42063 and yippie, getting the legend of cascaded WMS layer is working again after a long time!

While testing this, I have discovered, that the resulting legend image of the requested layer has always a max width value of 200 px.
This does not make sense in my opinion, as it leads to labels which are to small to read, especially if the legend graphic of the original layer is much wider than 200 px.

So where is this value come from and why is it there?

My suggestion would be to just cascade the width and height of the original layer legend here instead of setting a fixed value.

Thanks for any reply!

Steps to reproduce the issue

1. Setting up a QGIS project to publish via QGIS Server
2. include a WMS layer from an external OGC service
3. publish the project via QGIS Server
4. Request the legend image of the external wms layer with a GetLegendGraphic-Request

Versions

3.34.6

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

No response