Unable to display some characters due to the builtin font

[SamuNatsu]

System information

• coppwr version: 1.7.1
• coppwr installation method: AUR
• PipeWire version: 1.4.10
• OS: Arch Linux
• Desktop environment/Window manager: Gnome

Describe the bug
Some characters cannot be rendered, only a square block is shown.

Copy the square characters then paste to the terminal can see the actural text.

So, maybe is the font issue. Is it possible to use the system font as default?

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

The characters should be rendered as-is.

Screenshots

Additional context
Add any other context about the problem here.

[dimtpap]

Can you paste some of these characters here so I can test?

[SamuNatsu]

Can you paste some of these characters here so I can test?

Simple CJK texts would cause the issue

虚拟输出
バーチャル

The builtin fonts for egui/eframe does not contains these characters.