Method withInverse

src/ink/screen.ts:198–208

(baseId: number)

   */
  private inverseCache = new Map<number, number>()
  withInverse(baseId: number): number {
    let id = this.inverseCache.get(baseId)
    if (id === undefined) {
      const baseCodes = this.get(baseId)
      // If already inverted, use as-is (avoids SGR 7 stacking)
      const hasInverse = baseCodes.some(c => c.endCode === '\x1b[27m')
      id = hasInverse ? baseId : this.intern([...baseCodes, INVERSE_CODE])
      this.inverseCache.set(baseId, id)
    }
    return id
  }

  /** Inverse + bold + yellow-bg-via-fg-swap for the CURRENT search match.
   *  OTHER matches are plain inverse — bg inherits from the theme. Current