No, it's not the widget I want, as that places a graphic. Also, the widget launches my game embedded on the itch site which isn't what I want either.
I realise now that all I need is the https://itch.io/embed-upload/ link followed by my game's ID, but can I ask what is the colour setting for at the end of the link, after the game's ID?
If all the link does is launch my game in full browser mode, what is the colour reference for?