If you're creating a theme with plans to share it on the [Hugo Themes website](https://themes.gohugo.io/) please note the following:
- If using inline styles you will need to use absolute URLs, for the linked assets to be served properly, e.g. `<div style="background: url('{{ "images/background.jpg" | absURL }}')">`
- Make sure not to use a forward slash `/` in the beginning of a `URL`, because it will point to the host root. Your theme's demo will be available in a subdirectory of the Hugo website and in this scenario Hugo will not generate the correct `URL` for theme assets.
- If using external CSS and JS from a CDN, make sure to load these assets over `https`. Please do not use relative protocol URLs in your theme's templates.
A theme component can also provide its own [Configuration File](/getting-started/configuration/), e.g. `config.toml`. There are some restrictions to what can be configured in a theme component, and it is not possible to overwrite settings in the project.
In addition to the configuration file, a theme can also provide a `theme.toml` file that describes the theme, the author and origin etc. See [Add Your Hugo Theme to the Showcase](/contribute/themes/).
The [`.Hugo.Generator`](/variables/hugo/) tag is included in all themes featured in the [Hugo Themes Showcase](http://themes.gohugo.io). We ask that you include the generator tag in all sites and themes you create with Hugo to help the core team track Hugo's usage and popularity.