Rebased 🤞

I have no idea why these tests are failing. The striped line test failure looks like

Expected

Actual

Diff

The legend seems genuinely slightly taller than in the reference.

Ah, this would need#29907, which wasn't backported.

What's the preferred solution here then - backport#29907 or just update the test image here?

If we're backporting#29816, then we should also do#29907, or else these images will be inconsistent between FreeType versions.

This is wrapped up in the freetype side of things, so not going to hold 3.10.2 on it (since we're not waiting on that for 3.10.2).

That said, may be worth getting all of these backported if we are going this route, which I think is the consensus (and my personal opinion).

I decided to start a backport of#29907. If people started using thetext_placeholders fixture (probably unlikely, I'm sure), then we'd want the results to be right from the get go.

How much will we still backport to 3.10.x? If we don't need backports that add new test images or modify the existing ones, we could leave 3.10.x on the images with text. It should reach end-of-life in the near future.