The DUN Lines indicator detects, filters and plots price imbalances (aka fair value gaps or fvgs/ifvgs). It is unique in the fact that it uses five timeframes and filters out overlapping, lower timeframe imbalances and fvgs below a user-definable size threshold.
Simply set your detection timeframes, colors and thresholds then set your chart to your preferred entry timeframe. When imbalances are mitigated, the FVG/IFVG is removed from the chart.
The indicator's default colors are my preferred ones for differentiating between timeframes, but these are easily changed. A single color with various levels of transparency to indicate timeframe strength is another approach that works nicely.