File and program icons distinguish different file types and applications visually from each other. Users come into contact with icons every time they use the computer, but only a few would consider changing or modifying program icons on their system. I can only think of two user groups who would need the to view, modify and extract file icons: First users who like to install custom themes and total conversions. Default icons might not always match the installed custom theme, which is why some users go the extra mile and change their computer's program and file thumbnail icons as well.
Developers are the second group. They might want to experiment with different program icons for their applications to find the most suitable one. Thumbico is a free portable software for Windows that acts both as an icon viewer and extractor.
You can drag and drop icons into the program interface to view them in the selected resolution. One of the features of Thumbico is that it can display icons in a larger resolution than Windows can. You can change the resolution in the application's top menu bar, with a right-click and the selection of Make Bigger or Smaller, or with the keyboard shortcuts Ctrl+ or Ctrl-. If you ever wanted a larger than life version of the Firefox logo, now is your chance to take a look at it.
Standard icon sizes are available through the right-click context menu and the keyboard shortcuts Alt+ or Alt- as well. The latter cycle through all available icon sizes from 16x16 to 512x512 pixels.
Icons can be saved in their current display size and in various formats including bmp, gif, png and jpg. You can alternatively copy the image to the Windows clipboard to paste it directly into another application. The image will be saved with the background color that is displayed in the program interface. You can change the color or enable glass mode which adds transparency to the image if you save it in a format supporting transparency.
Most program features are accessible via keyboard shortcuts for fast access.
If there is one thing to criticize it is the lack of a load option in the program interface. The only way to load icons into the program is via drag and drop.
Thumbico is despite that a useful program for developers and users who want to customize their operating system.
Windows users can download the latest version of Thumbico from the developer website.
Update: Just got word from the author of the application that a load button is available after all. It is the top leftmost button in the program interface.
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