I don't know what's going on with the Azure Linux tasks. If I click through to Azure it says they all succeeded. But they are currently showing for me as in progress below.

Sorry, hid my comment was working on the wrong branch 🤦🏻

@tacaswell has pointed out that if you take the code from the OP and use plt.show(), then resize the window, the result jumps around. I welcome any guidance/suggestions about where to look to understand that.

I can't reproduce that, and also @tacaswell mentioned that he was on the wrong branch?

@tacaswell mentioned at the start of yesterday's call that he then tried with the right branch and it was still a problem (and I also reproduced it after the call). I have also now reproduced with multiple calls to savefig and set_size_inches. Everything seems fine if you don't resize.

import matplotlib.pyplot as plt
from matplotlib.offsetbox import AnnotationBbox, TextArea

fig, ax = plt.subplots(layout="constrained")
fig.set_facecolor('lightgray')

ab = AnnotationBbox(
    TextArea("Some text", textprops={"size": 42}),
    (1, 0.5),
    xycoords="axes fraction",
    box_alignment=(0.5, 0.5),
    pad=0
)

ax.add_artist(ab)

plt.savefig("test1.png")
fig.set_size_inches(8, 3)
plt.savefig("test2.png")
plt.savefig("test3.png")

I'm using QtAgg.

Edit: if I run this with main, the second and third images are the same as with my branch...

Oh, I see it's because it's at (1, 0.5), not (0.5, 0.5) as in the original issue. I thought that's where you meant by OP and not from here.

Ok I think I have it. I probably need to go educate myself better about what stale actually means....

@tomicapretto I think this also now fixes the case from tomicapretto/flexitext#11 (comment)

Should I add a test for the draw-then-resize case? I'm not sure how realistic it is that a future contributor would break it in that specific way.

I think this is fine without an additional test.