What does the keyboard shortcut Ctrl+[] do?

The keyboard shortcut Ctrl + [] is commonly used in various applications to adjust the font size of the selected text. When you press this combination, it typically decreases the font size on the first press and increases it on a subsequent press with Ctrl + Shift + []. This shortcut allows users to quickly modify text size without navigating through menus or dialogs, making it an efficient way to format documents, presentations, or other text-based files.

This capability is particularly useful in word processing applications and design software where formatting is a frequent task. The ability to manipulate font size quickly enhances productivity and provides a convenient means of adjusting visual text elements in a document.