Original sentence: Dock icons for "Folder" stacks that are often misleading because Stacks build icons from folder contents and do not allow for custom icons to be applied by the user.The emphasis of form over function in Stacks icon displays—fan arcs are considered visually appealing but of dubious functional value (although others noted that the arcing form clearly differentiates an open stack from the grid of files and volumes that may be on the desktop below)
Edited sentence: Dock icons for "Folder" stacks that are often misleading, because Stacks build icons from folder contents and do not allow for custom icons to be applied by the user.The emphasis of form over function in Stacks icon displays—fan arcs look visually appealing but are of dubious functional value (although others noted that the arcing form clearly differentiates an open stack from the grid of files and volumes that may be on the desktop below)