Thanks for reporting this! I must have not made the unblurred text offset properly in fullscreen window modes.

I found the fix and made a pull request. :)

Furthermore, the menu stuff at the top is tiny, would be nice to have it scale too, but probably worth another issue.

This is drawn by the operating system, so I don't think we can do much about it. Maybe you can do something in System Preferences? I'm not really sure.

EDIT: Oh, I missed that you're on Linux, not Mac. I couldn't tell the difference from the scaled-down screenshot. In that case, sure, we could probably make the menubar scale on Linux. This makes me wonder what it's like on Windows, too…

Furthermore, the menu stuff at the top is tiny, would be nice to have it scale too, but probably worth another issue.

This is drawn by the operating system, so I don't think we can do much about it. Maybe you can do something in System Preferences? I'm not really sure.

EDIT: Oh, I missed that you're on Linux, not Mac. I couldn't tell the difference from the scaled-down screenshot. In that case, sure, we could probably make the menubar scale on Linux. This makes me wonder what it's like on Windows, too…

it's a bit of a mess with wayland now... kde/gtk tend to scale well, other libraries, not so well. Not sure what CBOE is using, but probably have to tell it to scale (or file a bug upstream if necessary).

it's a bit of a mess with wayland now... kde/gtk tend to scale well, other libraries, not so well. Not sure what CBOE is using, but probably have to tell it to scale (or file a bug upstream if necessary).

I think that's possibly irrelevant? Since the menus on Linux are being drawn with SFML.

it's a bit of a mess with wayland now... kde/gtk tend to scale well, other libraries, not so well. Not sure what CBOE is using, but probably have to tell it to scale (or file a bug upstream if necessary).

I think that's possibly irrelevant? Since the menus on Linux are being drawn with SFML.

So they are fully implemented in SFML? Then support for high DPI would probably have to be added manually.

To be specific, they're drawn using TGUI, which is an SFML library that provides graphical widgets.

To be specific, they're drawn using TGUI, which is an SFML library that provides graphical widgets.

What I found about TGUI: https://tgui.eu/tutorials/latest-stable/dpi-scaling/

TLDR: You'll have to add something like:

// Sets 200% scaling
gui.setRelativeView({0, 0, 0.5f, 0.5f});
tgui::getBackend()->setFontScale(2.0f);

One issue is that SFML 2 does not seem to have any way to actually know the correct scaling factor though...

One issue is that SFML 2 does not seem to have any way to actually know the correct scaling factor though...

That doesn't seem to be an issue – since we're allowing the user to choose the scaling factor in preferences, it makes sense to just use the same factor for TGUI.