Aspect cannot display CJK characters (eg. Japanese) in image file names, or descriptions. And, current Aspect doesn’t have font settings.
However, I found a simple workaround.: Replace the display font in the AppImage (ie. /usr/share/aspect/resource/fonts/NotoSansDisplay-Regular.ttf) with a CJK supporting one (eg. NotoSansCJK-Regular.ttc).
Then, Japanese characters can be displayed.
So, would you consider adding font settings or including a CJK supporting font?
I’ve included the NotoSans CJK font as an additional fallback font for the upcoming release. It does increase the download size by ~15 MB, but for now provides a robust and easy fix. Ultimately we’d want to use the fonts installed in the system, but doing that robustly can be a bit involved.
The other open issues – most importantly IME support and also translations – are expected to land some time within the next year.
Regarding IME, if Aspect uses Qt, which I am not sure for now, then including the Fcitx plugins might solve the problem. I managed to do so with digiKam. I will post an update if I succeed with Aspect.