diff --git a/main.go b/main.go
index 1518769..2f635ba 100644
--- a/main.go
+++ b/main.go
@@ -426,6 +426,16 @@ func main() {
 	}
 	var generateBtn *widget.Button
 	errorStates := make(map[string]bool)
+	var applyingPreset bool
+	var clearPresetSelection func()
+	markPresetDirty := func() {
+		if applyingPreset {
+			return
+		}
+		if clearPresetSelection != nil {
+			clearPresetSelection()
+		}
+	}
 
 	// ... (other code)
 
@@ -455,6 +465,7 @@ func main() {
 	detailSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := detailSlider.value.Get()
 		settings.Detail = val
+		markPresetDirty()
 	}))
 
 	roughnessSlider := newNumericInputSlider(0, 100, settings.Roughness, "%.0f%%", "Roughness")
@@ -467,6 +478,7 @@ func main() {
 	roughnessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := roughnessSlider.value.Get()
 		settings.Roughness = val
+		markPresetDirty()
 	}))
 	// Create UI elements for controlling lake generation settings
 	lakesSlider := newNumericInputSlider(0, 15, float64(settings.Lakes), "%.0f", "Lakes")
@@ -479,6 +491,7 @@ func main() {
 	lakesSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := lakesSlider.value.Get()
 		settings.Lakes = int(val)
+		markPresetDirty()
 	}))
 
 	lakeSizeLowerSlider := newNumericInputSlider(1, 100, settings.LakeSizeLower, "%.0f%%", "Min Lake Size")
@@ -491,6 +504,7 @@ func main() {
 	lakeSizeLowerSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := lakeSizeLowerSlider.value.Get()
 		settings.LakeSizeLower = val
+		markPresetDirty()
 	}))
 
 	lakeSizeUpperSlider := newNumericInputSlider(1, 100, settings.LakeSizeUpper, "%.0f%%", "Max Lake Size")
@@ -503,6 +517,7 @@ func main() {
 	lakeSizeUpperSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := lakeSizeUpperSlider.value.Get()
 		settings.LakeSizeUpper = val
+		markPresetDirty()
 	}))
 
 	lakeEdgeRoughnessSlider := newNumericInputSlider(0, 100, settings.LakeEdgeRoughness, "%.0f%%", "Lake Edge Roughness")
@@ -515,11 +530,13 @@ func main() {
 	lakeEdgeRoughnessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := lakeEdgeRoughnessSlider.value.Get()
 		settings.LakeEdgeRoughness = val
+		markPresetDirty()
 	}))
 
 	lakeShapeLabel := widget.NewLabel("Lake Shape:")
 	lakeShapeSelect := widget.NewSelect([]string{"circle", "oval", "procedural"}, func(s string) {
 		settings.LakeShape = s
+		markPresetDirty()
 	})
 	lakeShapeSelect.SetSelected(settings.LakeShape)
 
@@ -533,6 +550,7 @@ func main() {
 	riversSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := riversSlider.value.Get()
 		settings.Rivers = int(val)
+		markPresetDirty()
 	}))
 
 	minRiverWidthSlider := newNumericInputSlider(1, 100, settings.MinRiverWidth, "%.0f%%", "Min River Width")
@@ -545,6 +563,7 @@ func main() {
 	minRiverWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minRiverWidthSlider.value.Get()
 		settings.MinRiverWidth = val
+		markPresetDirty()
 	}))
 
 	maxRiverWidthSlider := newNumericInputSlider(1, 100, settings.MaxRiverWidth, "%.0f%%", "Max River Width")
@@ -557,6 +576,7 @@ func main() {
 	maxRiverWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxRiverWidthSlider.value.Get()
 		settings.MaxRiverWidth = val
+		markPresetDirty()
 	}))
 
 	riverCurvynessSlider := newNumericInputSlider(0, 100, settings.RiverCurvyness, "%.0f%%", "River Curvyness")
@@ -569,6 +589,7 @@ func main() {
 	riverCurvynessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := riverCurvynessSlider.value.Get()
 		settings.RiverCurvyness = val
+		markPresetDirty()
 	}))
 
 	riverWidthVariabilitySlider := newNumericInputSlider(0, 100, settings.RiverWidthVariability, "%.0f%%", "River Width Variability")
@@ -581,6 +602,7 @@ func main() {
 	riverWidthVariabilitySlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := riverWidthVariabilitySlider.value.Get()
 		settings.RiverWidthVariability = val
+		markPresetDirty()
 	}))
 
 	riverEdgeRoughnessSlider := newNumericInputSlider(0, 100, settings.RiverEdgeRoughness, "%.0f%%", "River Edge Roughness")
@@ -593,6 +615,7 @@ func main() {
 	riverEdgeRoughnessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := riverEdgeRoughnessSlider.value.Get()
 		settings.RiverEdgeRoughness = val
+		markPresetDirty()
 	}))
 
 	minTreeSizeSlider := newNumericInputSliderWithStep(minTreeSizePercent, maxTreeSizePercent, settings.MinTreeSize, treeSizePercentStep, "%.1f%%", "Min Tree Size")
@@ -605,6 +628,7 @@ func main() {
 	minTreeSizeSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minTreeSizeSlider.value.Get()
 		settings.MinTreeSize = val
+		markPresetDirty()
 	}))
 
 	maxTreeSizeSlider := newNumericInputSliderWithStep(minTreeSizePercent, maxTreeSizePercent, settings.MaxTreeSize, treeSizePercentStep, "%.1f%%", "Max Tree Size")
@@ -617,6 +641,7 @@ func main() {
 	maxTreeSizeSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxTreeSizeSlider.value.Get()
 		settings.MaxTreeSize = val
+		markPresetDirty()
 	}))
 
 	treeCoverageSlider := newNumericInputSlider(1, 100, settings.TreeCoverage, "%.0f%%", "Tree Coverage")
@@ -629,6 +654,7 @@ func main() {
 	treeCoverageSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := treeCoverageSlider.value.Get()
 		settings.TreeCoverage = val
+		markPresetDirty()
 	}))
 
 	treeClumpinessSlider := newNumericInputSlider(0, 100, settings.TreeClumpiness, "%.0f%%", "Tree Clumpiness")
@@ -641,6 +667,7 @@ func main() {
 	treeClumpinessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := treeClumpinessSlider.value.Get()
 		settings.TreeClumpiness = val
+		markPresetDirty()
 	}))
 	minRoadWidthSlider := newNumericInputSliderWithStep(minRoadWidthPercent, maxRoadWidthPercent, settings.MinRoadWidth, roadWidthPercentStep, "%.1f%%", "Min Road Width")
 	minRoadWidthSlider.entry.OnChanged = func(s string) {
@@ -652,6 +679,7 @@ func main() {
 	minRoadWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minRoadWidthSlider.value.Get()
 		settings.MinRoadWidth = val
+		markPresetDirty()
 	}))
 
 	maxRoadWidthSlider := newNumericInputSliderWithStep(minRoadWidthPercent, maxRoadWidthPercent, settings.MaxRoadWidth, roadWidthPercentStep, "%.1f%%", "Max Road Width")
@@ -664,6 +692,7 @@ func main() {
 	maxRoadWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxRoadWidthSlider.value.Get()
 		settings.MaxRoadWidth = val
+		markPresetDirty()
 	}))
 
 	buildingsPerRoadSlider := newNumericInputSlider(1, 20, float64(settings.BuildingsPerRoad), "%.0f", "Buildings Per Road")
@@ -676,6 +705,7 @@ func main() {
 	buildingsPerRoadSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := buildingsPerRoadSlider.value.Get()
 		settings.BuildingsPerRoad = int(val)
+		markPresetDirty()
 	}))
 
 	roadExitsSlider := newNumericInputSlider(0, 100, float64(settings.RoadExits), "%.0f", "Road Exits")
@@ -688,6 +718,7 @@ func main() {
 	roadExitsSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := roadExitsSlider.value.Get()
 		settings.RoadExits = int(val)
+		markPresetDirty()
 	}))
 
 	roadCurvynessSlider := newNumericInputSlider(0, 100, settings.RoadCurvyness, "%.0f%%", "Road Curvyness")
@@ -700,6 +731,7 @@ func main() {
 	roadCurvynessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := roadCurvynessSlider.value.Get()
 		settings.RoadCurvyness = val
+		markPresetDirty()
 	}))
 
 	roadDistributionSlider := newNumericInputSlider(0, 100, settings.RoadDistribution, "%.0f%%", "Distribution")
@@ -712,6 +744,7 @@ func main() {
 	roadDistributionSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := roadDistributionSlider.value.Get()
 		settings.RoadDistribution = val
+		markPresetDirty()
 	}))
 
 	minRoadAngleSlider := newNumericInputSlider(0, 180, settings.MinRoadAngle, "%.0f°", "Minimum Road Angle")
@@ -724,6 +757,7 @@ func main() {
 	minRoadAngleSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minRoadAngleSlider.value.Get()
 		settings.MinRoadAngle = val
+		markPresetDirty()
 	}))
 
 	minWallWidthSlider := newNumericInputSliderWithStep(minWallWidthPercent, maxWallWidthPercent, settings.MinWallWidth, wallWidthPercentStep, "%.1f%%", "Min Wall Width")
@@ -736,6 +770,7 @@ func main() {
 	minWallWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minWallWidthSlider.value.Get()
 		settings.MinWallWidth = val
+		markPresetDirty()
 	}))
 
 	maxWallWidthSlider := newNumericInputSliderWithStep(minWallWidthPercent, maxWallWidthPercent, settings.MaxWallWidth, wallWidthPercentStep, "%.1f%%", "Max Wall Width")
@@ -748,6 +783,7 @@ func main() {
 	maxWallWidthSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxWallWidthSlider.value.Get()
 		settings.MaxWallWidth = val
+		markPresetDirty()
 	}))
 
 	numWallsSlider := newNumericInputSlider(0, 5, float64(settings.NumWalls), "%.0f", "Number of Walls")
@@ -760,6 +796,7 @@ func main() {
 	numWallsSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := numWallsSlider.value.Get()
 		settings.NumWalls = int(val)
+		markPresetDirty()
 	}))
 
 	cityCoverageSlider := newNumericInputSlider(1, 100, settings.CityCoverage, "%.0f%%", "City Coverage")
@@ -772,6 +809,7 @@ func main() {
 	cityCoverageSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := cityCoverageSlider.value.Get()
 		settings.CityCoverage = val
+		markPresetDirty()
 	}))
 
 	wallCurvynessSlider := newNumericInputSlider(0, 100, settings.WallCurvyness, "%.0f%%", "Wall Curvyness")
@@ -784,10 +822,12 @@ func main() {
 	wallCurvynessSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := wallCurvynessSlider.value.Get()
 		settings.WallCurvyness = val
+		markPresetDirty()
 	}))
 
 	showTurretsCheck := widget.NewCheck("Show Turrets", func(v bool) {
 		settings.ShowTurrets = v
+		markPresetDirty()
 	})
 	showTurretsCheck.SetChecked(settings.ShowTurrets)
 
@@ -801,11 +841,13 @@ func main() {
 	turretSizeSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := turretSizeSlider.value.Get()
 		settings.TurretSize = val
+		markPresetDirty()
 	}))
 
 	turretShapeLabel := widget.NewLabel("Turret Shape:")
 	turretShapeSelect := widget.NewSelect([]string{"circular", "square"}, func(s string) {
 		settings.TurretShape = s
+		markPresetDirty()
 	})
 	turretShapeSelect.SetSelected(settings.TurretShape)
 
@@ -819,6 +861,7 @@ func main() {
 	turretSpacingSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := turretSpacingSlider.value.Get()
 		settings.TurretSpacing = val
+		markPresetDirty()
 	}))
 
 	gateSpacingSlider := newNumericInputSlider(0, 100, settings.GateSpacing, "%.0f%%", "Gate Spacing")
@@ -831,6 +874,7 @@ func main() {
 	gateSpacingSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := gateSpacingSlider.value.Get()
 		settings.GateSpacing = val
+		markPresetDirty()
 	}))
 
 	turretControls := container.NewVBox(
@@ -849,6 +893,7 @@ func main() {
 		} else {
 			turretControls.Hide()
 		}
+		markPresetDirty()
 	}
 
 	// Create UI elements for error display and action buttons
@@ -1284,6 +1329,7 @@ func main() {
 	numBuildingsSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := numBuildingsSlider.value.Get()
 		settings.NumBuildings = int(val)
+		markPresetDirty()
 	}))
 
 	minBuildingSizeSlider := newNumericInputSliderWithStep(minBuildingSizePercent, maxBuildingSizePercent, settings.MinBuildingSize, buildingSizePercentStep, "%.1f%%", "Min Building Size")
@@ -1296,6 +1342,7 @@ func main() {
 	minBuildingSizeSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minBuildingSizeSlider.value.Get()
 		settings.MinBuildingSize = val
+		markPresetDirty()
 	}))
 
 	maxBuildingSizeSlider := newNumericInputSliderWithStep(minBuildingSizePercent, maxBuildingSizePercent, settings.MaxBuildingSize, buildingSizePercentStep, "%.1f%%", "Max Building Size")
@@ -1308,6 +1355,7 @@ func main() {
 	maxBuildingSizeSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxBuildingSizeSlider.value.Get()
 		settings.MaxBuildingSize = val
+		markPresetDirty()
 	}))
 
 	buildingDistributionSlider := newNumericInputSlider(0, 100, settings.BuildingDistribution, "%.0f%%", "Building Distribution")
@@ -1320,11 +1368,13 @@ func main() {
 	buildingDistributionSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := buildingDistributionSlider.value.Get()
 		settings.BuildingDistribution = val
+		markPresetDirty()
 	}))
 
 	buildingShapeLabel := widget.NewLabel("Building Shape:")
 	buildingShapeSelect := widget.NewSelect([]string{"squares", "circles", "rectangles", "mixed", "procedural"}, func(s string) {
 		settings.BuildingShape = s
+		markPresetDirty()
 	})
 	buildingShapeSelect.SetSelected(settings.BuildingShape)
 
@@ -1360,6 +1410,7 @@ func main() {
 	minBuildingComplexitySlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := minBuildingComplexitySlider.value.Get()
 		settings.MinBuildingComplexity = int(val)
+		markPresetDirty()
 	}))
 
 	maxBuildingComplexitySlider := newNumericInputSlider(1, 6, float64(settings.MaxBuildingComplexity), "%.0f", "Max Building Complexity")
@@ -1372,6 +1423,7 @@ func main() {
 	maxBuildingComplexitySlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := maxBuildingComplexitySlider.value.Get()
 		settings.MaxBuildingComplexity = int(val)
+		markPresetDirty()
 	}))
 
 	buildingComplexityRatioSlider := newNumericInputSlider(0, 100, settings.BuildingComplexityRatio, "%.0f%%", "Building Complexity Ratio")
@@ -1384,6 +1436,7 @@ func main() {
 	buildingComplexityRatioSlider.value.AddListener(binding.NewDataListener(func() {
 		val, _ := buildingComplexityRatioSlider.value.Get()
 		settings.BuildingComplexityRatio = val
+		markPresetDirty()
 	}))
 
 	proceduralContainer := container.NewVBox(
@@ -1430,6 +1483,7 @@ func main() {
 		}
 
 		updateRatioSliders()
+		markPresetDirty()
 	}
 
 	circleRatioSlider.OnChanged = func(val float64) {
@@ -1460,6 +1514,7 @@ func main() {
 		}
 
 		updateRatioSliders()
+		markPresetDirty()
 	}
 
 	rectangleRatioSlider.OnChanged = func(val float64) {
@@ -1491,6 +1546,7 @@ func main() {
 		}
 
 		updateRatioSliders()
+		markPresetDirty()
 	}
 
 	buildingShapeSelect.OnChanged = func(s string) {
@@ -1505,6 +1561,7 @@ func main() {
 			proceduralContainer.Hide()
 			ratioContainer.Hide()
 		}
+		markPresetDirty()
 	}
 	// Initial visibility check
 	if settings.BuildingShape == "mixed" {
@@ -1612,15 +1669,27 @@ func main() {
 		if !ok {
 			return
 		}
+		applyingPreset = true
 		imported, err := loadEmbeddedPreset(path)
 		if err != nil {
+			applyingPreset = false
 			dialog.ShowError(err, w)
 			return
 		}
 		imported.Seed = settings.Seed
 		applySettingsToUI(imported)
+		time.AfterFunc(50*time.Millisecond, func() {
+			fyne.Do(func() {
+				applyingPreset = false
+			})
+		})
 	})
 	presetSelect.SetSelected("No Preset")
+	clearPresetSelection = func() {
+		if presetSelect.Selected != "No Preset" {
+			presetSelect.SetSelected("No Preset")
+		}
+	}
 
 	buildingsTab := container.NewTabItem("Buildings", container.NewVBox(
 		numBuildingsSlider,