diff --git a/NetNewsWire.xcodeproj/project.pbxproj b/NetNewsWire.xcodeproj/project.pbxproj
index 4fb94ea7d..86289c172 100644
--- a/NetNewsWire.xcodeproj/project.pbxproj
+++ b/NetNewsWire.xcodeproj/project.pbxproj
@@ -74,7 +74,6 @@
 		5108F6B72375E612001ABC45 /* CacheCleaner.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5108F6B52375E612001ABC45 /* CacheCleaner.swift */; };
 		5108F6D22375EED2001ABC45 /* TimelineCustomizerViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5108F6D12375EED2001ABC45 /* TimelineCustomizerViewController.swift */; };
 		5108F6D42375EEEF001ABC45 /* TimelinePreviewTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5108F6D32375EEEF001ABC45 /* TimelinePreviewTableViewController.swift */; };
-		5108F6D823763094001ABC45 /* TickMarkSlider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5108F6D723763094001ABC45 /* TickMarkSlider.swift */; };
 		510C416124E5CDE3008226FD /* ShareViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 510C416024E5CDE3008226FD /* ShareViewController.swift */; };
 		510C416424E5CDE3008226FD /* ShareViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 510C416224E5CDE3008226FD /* ShareViewController.xib */; };
 		510C416924E5CDE3008226FD /* NetNewsWire Share Extension.appex in Embed App Extensions */ = {isa = PBXBuildFile; fileRef = 510C415C24E5CDE3008226FD /* NetNewsWire Share Extension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
@@ -1048,7 +1047,6 @@
 		5108F6B52375E612001ABC45 /* CacheCleaner.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CacheCleaner.swift; sourceTree = "<group>"; };
 		5108F6D12375EED2001ABC45 /* TimelineCustomizerViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelineCustomizerViewController.swift; sourceTree = "<group>"; };
 		5108F6D32375EEEF001ABC45 /* TimelinePreviewTableViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimelinePreviewTableViewController.swift; sourceTree = "<group>"; };
-		5108F6D723763094001ABC45 /* TickMarkSlider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TickMarkSlider.swift; sourceTree = "<group>"; };
 		510C415C24E5CDE3008226FD /* NetNewsWire Share Extension.appex */ = {isa = PBXFileReference; explicitFileType = "wrapper.app-extension"; includeInIndex = 0; path = "NetNewsWire Share Extension.appex"; sourceTree = BUILT_PRODUCTS_DIR; };
 		510C416024E5CDE3008226FD /* ShareViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareViewController.swift; sourceTree = "<group>"; };
 		510C416324E5CDE3008226FD /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/ShareViewController.xib; sourceTree = "<group>"; };
@@ -1865,7 +1863,6 @@
 				5183CCCF226E1E880010922C /* NonIntrinsicLabel.swift */,
 				51A9A6092382FD240033AADF /* PoppableGestureRecognizerDelegate.swift */,
 				512363372369155100951F16 /* RoundedProgressView.swift */,
-				5108F6D723763094001ABC45 /* TickMarkSlider.swift */,
 				C5A6ED6C23C9B0C800AB6BE2 /* UIActivityViewController-Extensions.swift */,
 				51F85BF82274AA7B00C787DC /* UIBarButtonItem-Extensions.swift */,
 				51F85BF622749FA100C787DC /* UIFont-Extensions.swift */,
@@ -3923,7 +3920,6 @@
 				512D554423C804DE0023FFFA /* OpenInSafariActivity.swift in Sources */,
 				51C452762265091600C03939 /* TimelineViewController.swift in Sources */,
 				5195C1DC2720BD3000888867 /* FeedRowIdentifier.swift in Sources */,
-				5108F6D823763094001ABC45 /* TickMarkSlider.swift in Sources */,
 				51C452882265093600C03939 /* AddFeedViewController.swift in Sources */,
 				51B5C8C023F3866C00032075 /* ExtensionFeedAddRequestFile.swift in Sources */,
 				51A169A0235E10D700EB091F /* FeedbinAccountViewController.swift in Sources */,
diff --git a/iOS/UIKit Extensions/TickMarkSlider.swift b/UIKitExtras/Sources/UIKitExtras/TickMarkSlider.swift
similarity index 85%
rename from iOS/UIKit Extensions/TickMarkSlider.swift
rename to UIKitExtras/Sources/UIKitExtras/TickMarkSlider.swift
index 5a7aa73ba..24a7152b3 100644
--- a/iOS/UIKit Extensions/TickMarkSlider.swift	
+++ b/UIKitExtras/Sources/UIKitExtras/TickMarkSlider.swift
@@ -8,13 +8,13 @@
 
 import UIKit
 
-class TickMarkSlider: UISlider {
+public final class TickMarkSlider: UISlider {
 
 	private var enableFeedback = false
 	private let feedbackGenerator = UISelectionFeedbackGenerator()
 	
 	private var roundedValue: Float?
-	override var value: Float {
+	public override var value: Float {
 		didSet {
 			let testValue = value.rounded()
 			if testValue != roundedValue && enableFeedback && value.truncatingRemainder(dividingBy: 1) == 0 {
@@ -24,7 +24,7 @@ class TickMarkSlider: UISlider {
 		}
 	}
 	
-	func addTickMarks() {
+	public func addTickMarks(color: UIColor) {
 
 		enableFeedback = true
 		
@@ -36,7 +36,7 @@ class TickMarkSlider: UISlider {
 			
 			let tick = UIView()
 			tick.translatesAutoresizingMaskIntoConstraints = false
-			tick.backgroundColor = AppAssets.tickMarkColor
+			tick.backgroundColor = backgroundColor
 			insertSubview(tick, at: 0)
 
 			tick.widthAnchor.constraint(equalToConstant: 3).isActive = true
@@ -59,7 +59,6 @@ class TickMarkSlider: UISlider {
 			} else {
 				tick.trailingAnchor.constraint(equalTo: trailingAnchor).isActive = true
 			}
-			
 		}
 		
 		if let firstGapLayoutGuild = gapLayoutGuides.first {
@@ -67,17 +66,15 @@ class TickMarkSlider: UISlider {
 				gapLayoutGuides[i].widthAnchor.constraint(equalTo: firstGapLayoutGuild.widthAnchor).isActive = true
 			}
 		}
-				
 	}
 	
-	override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
+	public override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
 		let result = super.continueTracking(touch, with: event)
 		value = value.rounded()
 		return result
 	}
 
-	override func endTracking(_ touch: UITouch?, with event: UIEvent?) {
+	public override func endTracking(_ touch: UITouch?, with event: UIEvent?) {
 		value = value.rounded()
 	}
-	
 }
diff --git a/iOS/Settings/TimelineCustomizerViewController.swift b/iOS/Settings/TimelineCustomizerViewController.swift
index 6869be1aa..113959831 100644
--- a/iOS/Settings/TimelineCustomizerViewController.swift
+++ b/iOS/Settings/TimelineCustomizerViewController.swift
@@ -8,8 +8,9 @@
 
 import UIKit
 import Images
+import UIKitExtras
 
-class TimelineCustomizerViewController: UIViewController {
+final class TimelineCustomizerViewController: UIViewController {
 
 	@IBOutlet weak var iconSizeSliderContainerView: UIView!
 	@IBOutlet weak var iconSizeSlider: TickMarkSlider!
@@ -29,11 +30,11 @@ class TimelineCustomizerViewController: UIViewController {
 
 		iconSizeSliderContainerView.layer.cornerRadius = 10
 		iconSizeSlider.value = Float(AppDefaults.shared.timelineIconSize.rawValue)
-		iconSizeSlider.addTickMarks()
+		iconSizeSlider.addTickMarks(color: AppAssets.tickMarkColor)
 
 		numberOfLinesSliderContainerView.layer.cornerRadius = 10
 		numberOfLinesSlider.value = Float(AppDefaults.shared.timelineNumberOfLines)
-		numberOfLinesSlider.addTickMarks()
+		numberOfLinesSlider.addTickMarks(color: AppAssets.tickMarkColor)
     }
 	
 	override func viewWillAppear(_ animated: Bool) {
@@ -57,7 +58,6 @@ class TimelineCustomizerViewController: UIViewController {
 		AppDefaults.shared.timelineNumberOfLines = Int(numberOfLinesSlider.value.rounded())
 		updatePreview()
 	}
-	
 }
 
 // MARK: Private
@@ -87,5 +87,4 @@ private extension TimelineCustomizerViewController {
 			previewContainerView.layer.borderWidth = 0
 		}
 	}
-	
 }