default int getMinZoomForPixelSize(double minPixelSize) {
      return collector().getMinZoomForPixelSize(minPixelSize);
    }
Sets the value for {@code key} so that it always shows when {@code zoom_level >= minZoomToShowAlways} but only
shows when {@code minZoomIfBigEnough <= zoom_level < minZoomToShowAlways} when it is at least
{@code minPixelSize} pixels in size.
<p>
If you need more flexibility, use {@link #getMinZoomForPixelSize(double)} directly, or create a
{@link ZoomFunction} that calculates {@link #getPixelSizeAtZoom(int)} and applies a custom threshold based on the
zoom level.
planetiler-core/src/main/java/com/onthegomap/planetiler/FeatureCollector.java