Dark theme needs better contrast
I have noticed that dark theme causes waveform to be practically invisible. It is not that important, but the app has really nice design and it is a pity that this small detail doesn't look right. I am not a fan of theming but I think that every app should be compatible with both Adwaita light and dark variant.
Sound Recorder version: 3.38.0 (from Flathub)
Gnome Shell: 3.38.0
Theme: Adwaita-dark [GTK2/3]
OS: Arch Linux