Dark mode is not available right now but we know it's a popular feature and we're looking to bring this to Gizmo sometime in the future.
In the meantime, if you use the web version, you can use a browser extension to make it dark. Please bear in mind that this may make the website look a little different than expected and any glitches you may see would be caused by the extension.
If you have any other questions, please get in touch using the button below!