How to remove/change anchor icon at Oceanica theme?

- Update -

Since Oceanica 1.6.0 version it is possible to change anchor icon via Dashboard>Appearance>Customize>Theme Options>Icon Separator

- Update -

You can add the style below within Appearance>Customize>Additional CSS or Child theme style.css file in order to remove the anchor icon:

.entry-header:after, .entry-child-pages:after, .content-bottom-widgets:after {
 content:none !important;
}

If you want to add another icon you can use code of Font Awesome icons e.g.

.entry-header:after, .entry-child-pages:after, .content-bottom-widgets:after {
content:"\f015" !important;
}

Also you can use custom image icon using code

.entry-header:after, .entry-child-pages:after, .content-bottom-widgets:after {
 content:url('wp-content/uploads/2017/12/test.png') !important;
}

More Font Awesome icons