Illustrate a set of colorful and whimsical icons for a popular online collaboration platform, featuring characters and objects that represent different aspects of teamwork and communication, such as a smiling face for 'teamwork' or a speech bubble for 'feedback'.

Create a minimalist icon for a mobile app that helps users manage and organize their digital files and documents, with a focus on simplicity, elegance, and ease of use, featuring a stylized letter 'F' or a file folder symbol.

Design a futuristic icon for a new software development tool that combines the functionality of a code editor, compiler, and debugger, with a sleek and modern design that appeals to developers of all levels, incorporating a subtle nod to the classic computer icons of the past while still feeling fresh and innovative.