.wpmf-gallery-elementor-icon:before {
    background-image: url(images/gallery_dark.svg);
}

.wpmf-gallery-addon-elementor-icon:before {
    background-image: url(images/gallery_addon_dark.svg);
}

.wpmf-pdf-embed-elementor-icon:before {
    background-image: url(images/pdf_embed_dark.svg);
}

.wpmf-file-design-elementor-icon:before {
    background-image: url(images/file_design_dark.svg);
}

.elementor-panel .elementor-element:hover .icon .wpmf-gallery-elementor-icon:before {
    background-image: url(images/gallery_dark_hover.svg);
}

.elementor-panel .elementor-element:hover .icon .wpmf-gallery-addon-elementor-icon:before {
    background-image: url(images/gallery_addon_dark_hover.svg);
}

.elementor-panel .elementor-element:hover .icon .wpmf-pdf-embed-elementor-icon:before {
    background-image: url(images/pdf_embed_dark_hover.svg);
}

.elementor-panel .elementor-element:hover .icon .wpmf-file-design-elementor-icon:before {
    background-image: url(images/file_design_dark_hover.svg);
}