Designing for background jobs introduces a level of uncertainty that challenges traditional UX principles. Effective design in this context requires clear communication of job states and meaningful progress indicators. The article emphasizes the importance of testing asynchronous workflows in real-world scenarios to ensure users understand what's happening behind the scenes. There’s no one-size-fits-all design language. The piece critically examines Linear-style design, explaining when it is effective and when it falls short. While many SaaS products have adopted this style, it warns against overuse in marketing without real testing to back up conversion claims. The article also contrasts Linear design's strengths—such as maintaining contrast and structure—with the shortcomings of brutalism and neumorphism, which can compromise usability. Linear-style UIs may appear simple, but they require a robust theming system to work effectively. Meeting accessibility standards, specifically the WCAG 2.2 contrast requirements, is essential whether using an established UI library or creating custom design tokens. The article provides practical insights into achieving these standards across different modes, including light, dark, and high-contrast settings.