> For the complete documentation index, see [llms.txt](https://a-styd.gitbook.io/apexcharts-ruby/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://a-styd.gitbook.io/apexcharts-ruby/options/global-options.md).

# Global Options

To use default options globally, you can specify config for default options before calling your charts. In Rails, put it in `initializers` directory. For example:

```ruby
# config/initializers/apexcharts.rb

ApexCharts.config.default_options = {
  data_labels: false,
  tootip: true,
  theme: 'my-theme'
}
```

All charts will then automatically pick up these global options, which can be overwritten individually by any options passed to the relevant chart helper.