EE7.5.17
Go to File manager> list view and SVG thumbs are not displaying. They display fine in grid view.
When used in an IMG tag to get then to display you usually have to explicitly set a height+width either with attributes or via CSS.
Suggested fix to class .f_manager-wrapper tr.app-listing__row .thumbnail_img is to add a min-width:50px; rule.
Either that or add a new rule to target svg files .f_manager-wrapper tr.app-listing__row .thumbnail_img[src*="svg"] {min-width:50px;}