Inline assets with propshaft
With propshaft it is possible to easily get the content of an asset. This is mainly useful if you want to inline an SVG. Instead of rendering an <img /> tag which references the SVG, the SVG can be inlined directly into the HTML.
= Rails.application.assets.load_path.find('my_icon.svg').content.html_safe
This is especially useful when the SVG uses currentColor. Only inline SVG use the current color from the parent HTML.
If you are not using propshaft, have a look at the inline_svg gem.