This isn't the first theme switcher, and it certainly won't be the last.
Alternative tools are worth discussing. They may match your needs better, and
the discussion helps to show how
thcon fits into the space.
Broadly speaking though: Most of these tools optimize for switching to an entirely new colorscheme often. For example, switching from Solarized to Catppuccin to gruvbox to (…). These often exclude system settings, which can lead to an unexpectedly still-bright file browser or a system volume slider that's too dark for the current surroundings.
thcon instead optimizes for switching between dark and light variants of a
single theme, and considers desktop environment / OS settings "in scope". If you
make your terminal dark, you likely also want your global panel, file navigator,
window switcher, system dialogs etc. to also be dark.
Gogh is an excellent theme installer that
can automatically set up a new profile in one of several terminals. It's a good
thcon, since it can reduce the effort involved in setting up
profiles when adopting a new color scheme.
Base16 + Flavours
The Base16 project has produced tons of themes and spawned several accompanying tools.
Flavours supports far more applications due to its support for base16-templates-source, but it's unable to switch desktop environment themes, integrate with tools that don't support config-file switching (e.g. macOS's global dark theme), or use themes that are outside the base16 family.
is quite similar to
flavours, and will download, install, and switch themes
for any base16-templates-source
app. It unfortunately has the same limitations as
flavours as a result.
A classic in this space, pywal is pretty
base16-universal-manager. It can control many of the
same tools, and its likely most popular for its ability to generate a custom
colorscheme from an image. Like the other tools listed, it's unable to switch
more global OS-level themes.
There's certainly a few tools missing here. Please open an issue and let me know what I've missed.