When creating ICO files specifically for menus, rather than app icons, 16 x 16, 24 x 24 & 32 x 32 are the three most common sizes used. Click on the View option to expand the menu. The size most commonly used size on this list is ’24 x 24 as it is a standard size for menus within Windows 7 and 3rd-party software. In order to change the icons size, right-click on any empty area of your desktop.
Two main attributes you can modify are the size and the spacing of the icons.
Alt + Down Arrow or Up Arrow Option + Down Arrow or Up Arrow Decrease or increase baseline shift 2 points or pixels. Certain special icons cannot be changed this way, including the Finder and Trash icons. You can change the icon of most folders, applications, and documents. If you want to change an icon on your dock, Control-click and select Options Show in Finder.
Control + Shift + < or > Command + Shift + < or > Decrease or increase leading 2 points or pixels. Go to the folder that contains the file youd like to alter.PATHFINDER FOR MAC CHANGE ICON SIZE IN ALL LISTS WINDOWS 10
Although File Explorer will remember your last setting when you open this folder again, this is a folder-specific setting, so you'll have to adjust each folder you'd want different icon and text sizes for. You have different options in Windows 10 to setup the desktop icons as per your preference. Decrease or increase type size of selected text 2 points or pixels.