To figure out what code is used by Visual Studio Code, it is crucial to understand that this software itself does not contain “code” in the conventional sense. Instead, Visual Studio Code uses extensions to add additional functionality and improve the development experience. These extensions can be written in languages such as JavaScript or TypeScript, allowing users to customize their work environment to their specific needs.
As for the visual appearance of code in list of phone number in philippines Visual Studio Code, it can be modified through settings in the 'settings.json' file. Through this configuration file, users can specify the font, text size, spacing, and other visual attributes to optimize their workflow and make reading and writing code more comfortable.

In short, flexibility and customization are key elements when it comes to the code source used by Visual Studio Code in 2021. Users have the freedom to choose from various options and settings to tailor the development environment to their individual preferences and ensure an optimal experience when working with code.