Homestuck font render issues (device font related)

[MrCheeze]

Describe the bug

This movie (direct swf link) has multiple font rendering issues. Other flashes from Homestuck tend to use fonts in the same way and have similar issues.

1. Underlines are missing:
   

2. Text is cut off because it uses the Ruffle default font instead of Courier New device font (see Implement device font rendering #1862)
   

Expected behavior

See the comparison above - underlines should be present in the text, and Courier New should be used instead of the Ruffle default font.

Underline presence is self-explanatory.

For getting Courier New, I would consider any solution that doesn't require editing the movie itself to be valid, for example:

• Ruffle actually loading the operating system's device fonts, as Flash Player does.
• Ruffle adding builtin support for common fonts.
• Requiring the host website to provide an additional fonts file, as proposed by n0samu here.

Affected platform

Self-hosted version

Operating system

Windows 11

Browser

Mozilla Firefox

Additional information

No response

[MrCheeze]

"Requiring the host website to provide an additional fonts file" has now been implemented in #13604, allowing for the correct font to be used!