Option object defines look and functionality of iSlide menu. Define property name and proper value. All the properties are listed below.
Icons property is nescessary for the menu to function and it's construction is described in icons section.

const options = {
bar_radius: 20,
indicators_color: '#f28b0c',
icons: { ... },
...
}

Icons object defines the menu points and their icons. Object key is the data-islide-name html property.
Icon name: iSlide is using Google Icons free icons. Just type the icon name inside the < icon name >.
Every stop point must have an icon.

icons: {
islide_stop_1: '< icon name >',
islide_stop_2: '< icon name >',
islide_stop_3: '< icon name >',
...
}