• TheZipCreator (13/16) Mar 08 I'm using the arsd.minigui package for a project, and I want to
• Adam D. Ruppe (23/29) Mar 08 Make one using those like this:

TheZipCreator <thezipcreator protonmail.com> writes:

I'm using the arsd.minigui package for a project, and I want to 
add a dark theme/light theme switch. It seems that there's 
support for theming in minigui, but the documentation isn't 
exactly clear on how to do it. I found `DefaultTheme`, 
`DefaultLightTheme`, and `DefaultDarkTheme`, but how do I 
actually set my project to use them?

Also, the docs say:

 These don't apply to non-custom widgets! They will use the 
 operating system's native theme unless the documentation for 
 that specific class says otherwise.

But at least for me under Debian 12 (GNOME 43.9) it seems that 
the system theme isn't applying; the application appears in light 
mode despite the fact that I have my system theme set to dark 
(specifically `HighContrastInverse`).

I'd prefer users to be able to set their own theme, however, 
regardless of the system theme (if that's possible).

Adam D. Ruppe <destructionator gmail.com> writes:

On Saturday, 8 March 2025 at 20:13:57 UTC, TheZipCreator wrote:
 I'm using the arsd.minigui package for a project, and I want to 
 add a dark theme/light theme switch.

Make one using those like this:

class ThisVisualTheme : VisualTheme!ThisVisualTheme {
     mixin DefaultDarkTheme;
}

Then set it somewhere  by doing

WidgetPainter.visualTheme = new ThisVisualTheme();

You can set

WidgetPainter.visualTheme = null;

to go back to the default. So if you want to do a runtime toggle 
put that in a button handler or something.

I keep tweaking these things so some details might change if you 
pull from master or use the next tag (which is scheduled for May).

 But at least for me under Debian 12 (GNOME 43.9) it seems that 
 the system theme isn't applying; the application appears in 
 light mode despite the fact that I have my system theme set to 
 dark (specifically `HighContrastInverse`).

On Linux, ALL minigui widgets are "custom" widgets; the docs are 
written with a bit of a Windows bias. On Windows, things 
generally follow the system theme because they are controls 
provided by the system. On Linux, it is all done by minigui and 
thus "custom", purely internal.

If you know how to read the system theme and apply it, I'd 
appreciate some pointers. I can't stand GNOME (or anything that 
uses gtk really) so I don't even know how to use it at all.

But in theory, the default visual theme could read at least the 
basic colors and return them to apply to minigui too.