Each theme has own little settings except default one.We used default one for our examples.Lets see awesome theme.Lets remove message option and add theme options and lets add theme options with contents options.

You can see i added second option at theme name( awesome ok).It is a variation for our theme , you can check all variations for themes at documentation page.But dont worry ill show you another variation at next example.

I wont cover themes options , but i will show little examples.

        'theme'     :'awesome ok',
        'content'   :{
            title:'Your Download is Ready!',
            message:'1.4 GB',
            icon:'fa fa-download'
        'position'  :'bottom right',
        'outEffect' :'slideBottom'