DEV CommunityMonday · August 10, 2026FREE

The Security Gap in MCP Tool Servers (And What I Built to Fix It)

The source text outlines extensive CSS rules for a "THE 418 CHALLENGE: THEME-AWARE RETRO EDITION," distinguishing between light and dark themes. The light theme, designed with "Windows 95 / Office 97 Vibes," applies a `#008080` (Win95 Teal Desktop) background. Elements like `.crayons-card`, `.crayons-article__main`, and `.crayons-article__header` receive a `#c0c0c0` (Classic dialog gray) background, `#000000` color, `4px outset #ffffff` border, and `8px 8px 0px #000000` box-shadow. Headers (`h1`, `h2`, `h3`) are styled with `#ff0000` color, `2px 2px 0px #ffff00` text-shadow, and a `3px dashed #0000ff` bottom border. Links are `#0000ff` and tags are `#ffff00` with `#ff0000` text. The dark theme, aiming for "1999 Hacker / Deep GeoCities Vibes," features a `#000000` background with a `linear-gradient` creating a "scrolling, eye-bleeding neon green hacker grid with CRT scanlines" via `animation: retro-pan`. Card and article elements adopt a `#111111` background, `#00ff00` (Terminal Green) color, `4px outset #555555` border, and `8px 8px 0px #ff00ff` (Hot pink shadow) box-shadow. Dark theme headers use `#ff00ff` (Magenta) color, `2px 2px 0px #00ffff` (Cyan shadow) text-shadow, and a `3px dashed #00ff00` bottom border. Typography specifics include `text-transform: uppercase` for headers and `font-family: "Comic Sans MS"` for the challenge. Animations like `retro-slide` for main titles and `retro-spin` for avatars are also defined.