Blurry emojis in PNG

[fkohrt]

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Describe the bug

Diagrams with emojis exported to PNG look blurred at high resolution.

To Reproduce

Steps to reproduce the behavior:

1. Create a new diagram with a text field containing ⚠️.
2. Export it as PNG at a high resolution (e.g., 300%)
3. Obtain a blurred warning sign

Expected behavior

A crispy warning sign.

Screenshots

draw.io version (In the Help->About menu of the draw.io editor):

• draw.io version 24.7.17

Desktop (please complete the following information):

• OS: Fedora 40
• Browser: Firefox
• Browser Version: 130

I tested the problem in incognito/private mode with all browser extensions switched off, write "yes" below:

• yes

Additional context

Well, this is the issue that led me to the issue tracker and made me discover the license change.

[davidjgraph]

That would be the expected behaviour for me, it's a raster image. If you search for "alert" in the shapes, there are vector alerts.

[fkohrt]

I see – I managed to work around it by exporting as SVG and screenshoting a zoomed version in the browser. So I thought this should be solvable in principle.