All svg-icons used in the theme are located in "HTML/svg-icons" folder.
In the folder "HTML/svg-icons/sprite there is the icons.svg file. This is svg-sprite, which contains a set of svg-icons, each of which has its own unique ID. To call and place any icon from the sprite in the content, you should use markup (for example):
<svg class="crumina-icon"><use xlink:href="svg-icons/sprite/icons.svg#icon-close"></use></svg>
where:
class = "crumina-icon” is a required class that is used for all theme icons;
href="svg-icons/sprite/icons.svg#icon-close is the so-called "link" to the unique ID of the required icon from the sprite.
For simplicity and clarity, all the icons used in the template with their usage code are placed in the typography page - 31_typography.html