UniConfig Config Panel
DevCentr does not vendor a second copy of the panel. uniconfig-core is the reusable D library. The GUI is the standalone uniconfig executable.
When uniconfig is on PATH, the repository "Open With" editor menu offers UniConfig Config Panel. modules.uniconfig.launch detects the binary and spawnProcess(["uniconfig", path]).
Config-like names: .json, .yml, .yaml, .toml, .ini, .cfg, .sdl, .tfvars, .gitconfig, dub.sdl, .editorconfig.
Outside DevCentr, people run the same binary. Docs: UniConfig.