Keep layout constants, feature flags, and user-configurable settings in centralized configuration modules (not hardcoded in components). Motivation: makes it easy to find and change UI “magic” values (e.g., tab width, spacing) and ensures behavior can be toggled per-environment or per-user (e.g., suppressing update banners when users turn off update checks).

How to apply:

• Create dedicated config files (examples: magiclayout.ts, featureflags.ts, clientConfig.ts) and export named values.
• Import those values in components instead of declaring local constants or conditionals.
• Respect user settings and feature flags when rendering UI; surface updates only via agreed channels if the corresponding setting is disabled.

Examples:

• Move tab width into magiclayout.ts: // magiclayout.ts export const TAB_WIDTH = 175;

  // tabs.tsx import { TAB_WIDTH } from ‘../../config/magiclayout’;

• Check a user setting before showing an update sidebar entry: // clientConfig.ts (runtime/user settings) export const clientConfig = { checkForUpdates: true, // toggled by user };

  // sidebar.tsx import { clientConfig } from ‘../../config/clientConfig’; … {clientConfig.checkForUpdates && clientData?.releaseinfo?.releaseavailable && (

  ...update banner...

  )}

Notes:

• Keep config modules focused and discoverable (group layout constants together, feature flags together).
• Allow environment/user overrides (env vars, persisted settings) and document intent so components remain declarative and testable.