Upgrade minimal support version to iOS 13.0

LineSDK/LineSDK.xcodeproj/project.pbxproj

@@ -3,7 +3,7 @@
 	archiveVersion = 1;
 	classes = {
 	};
-	objectVersion = 50;
+	objectVersion = 53;
 	objects = {
 
 /* Begin PBXBuildFile section */
@@ -136,7 +136,6 @@
 		4B90588721006E5D004D717F /* LineSDKTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B90588621006E5D004D717F /* LineSDKTests.swift */; };
 		4B9058D421007394004D717F /* LoginConfiguration.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9058D321007394004D717F /* LoginConfiguration.swift */; };
 		4B9058D6210073E6004D717F /* LoginManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9058D5210073E6004D717F /* LoginManager.swift */; };
-		4B9058D8210078FB004D717F /* Result.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9058D7210078FB004D717F /* Result.swift */; };
 		4B9058DC21007C8C004D717F /* LoginResult.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9058DB21007C8C004D717F /* LoginResult.swift */; };
 		4B93F2D223CD5307003B955D /* OpenChatCreatingControllerDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B93F2D123CD5307003B955D /* OpenChatCreatingControllerDelegate.swift */; };
 		4B94D06721533D4D0049DE68 /* ECDSATests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B94D06621533D4D0049DE68 /* ECDSATests.swift */; };
@@ -375,7 +374,6 @@
 		4BCD257F23FFAABA00D4B6BD /* RSA.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B25A814213687A400C74B87 /* RSA.swift */; };
 		4BCD258023FFAABA00D4B6BD /* ECDSA.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B3CCB9B21523B1300F51D76 /* ECDSA.swift */; };
 		4BCD258123FFAABA00D4B6BD /* ResultUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4BF3044E221D3620005ADADD /* ResultUtils.swift */; };
-		4BCD258223FFAABA00D4B6BD /* Result.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B9058D7210078FB004D717F /* Result.swift */; };
 		4BCD258323FFAABA00D4B6BD /* Helpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B45256C2101829F00A39D4F /* Helpers.swift */; };
 		4BCD258423FFAABA00D4B6BD /* Delegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B8FF4852105656500890AEF /* Delegate.swift */; };
 		4BCD258523FFAABA00D4B6BD /* CallbackQueue.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B8FF48A21056B3800890AEF /* CallbackQueue.swift */; };
@@ -709,7 +707,6 @@
 		4B90588821006E5D004D717F /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		4B9058D321007394004D717F /* LoginConfiguration.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginConfiguration.swift; sourceTree = "<group>"; };
 		4B9058D5210073E6004D717F /* LoginManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginManager.swift; sourceTree = "<group>"; };
-		4B9058D7210078FB004D717F /* Result.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Result.swift; sourceTree = "<group>"; };
 		4B9058DB21007C8C004D717F /* LoginResult.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginResult.swift; sourceTree = "<group>"; };
 		4B93F2D123CD5307003B955D /* OpenChatCreatingControllerDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OpenChatCreatingControllerDelegate.swift; sourceTree = "<group>"; };
 		4B94D06621533D4D0049DE68 /* ECDSATests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ECDSATests.swift; sourceTree = "<group>"; };
@@ -1305,7 +1302,6 @@
 			isa = PBXGroup;
 			children = (
 				4BF3044E221D3620005ADADD /* ResultUtils.swift */,
-				4B9058D7210078FB004D717F /* Result.swift */,
 				4B45256C2101829F00A39D4F /* Helpers.swift */,
 				4B8FF4852105656500890AEF /* Delegate.swift */,
 				4B8FF48A21056B3800890AEF /* CallbackQueue.swift */,
@@ -2083,8 +2079,9 @@
 		4B90586F21006E5C004D717F /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
+				BuildIndependentTargetsInParallel = YES;
 				LastSwiftUpdateCheck = 0940;
-				LastUpgradeCheck = 1400;
+				LastUpgradeCheck = 1430;
 				ORGANIZATIONNAME = "LINE Corp";
 				TargetAttributes = {
 					4B6A702D2109793500D71C66 = {
@@ -2300,7 +2297,6 @@
 				4B9A3047212139C000174C6F /* TemplateMessage.swift in Sources */,
 				4B1C44652137E0CA0094C1D4 /* JWT.swift in Sources */,
 				4BB002C82244788A00FB8BD8 /* ImageManager.swift in Sources */,
-				4B9058D8210078FB004D717F /* Result.swift in Sources */,
 				4B9A30352121182400174C6F /* VideoMessage.swift in Sources */,
 				4B9A304921213CE100174C6F /* TemplateButtonsPayload.swift in Sources */,
 				4B688E3E226F029B002575CC /* LoadingIndicator.swift in Sources */,
@@ -2581,7 +2577,6 @@
 				4BCD256623FFAABA00D4B6BD /* ImageManager.swift in Sources */,
 				4BCD24D023FFA74100D4B6BD /* LineSDKJWT.swift in Sources */,
 				4BCD253B23FFAABA00D4B6BD /* GetShareFriendsRequest.swift in Sources */,
-				4BCD258223FFAABA00D4B6BD /* Result.swift in Sources */,
 				4BCD253823FFAABA00D4B6BD /* GetGroupsRequest.swift in Sources */,
 				D1D22C972408A8FD0028A9E0 /* FormSection.swift in Sources */,
 				D1D22CAB2408AA480028A9E0 /* LineSDKOpenChatRoomMembershipState.swift in Sources */,
@@ -2886,7 +2881,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -2946,7 +2941,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_ACTIVE_COMPILATION_CONDITIONS = LineSDKXCProj;
@@ -2969,13 +2964,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDK/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDK;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
@@ -2996,13 +2994,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDK/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDK;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
@@ -3058,13 +3059,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDKObjC/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDKObjC;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
@@ -3084,13 +3088,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDKObjC/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDKObjC;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
@@ -3143,13 +3150,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDKObjC/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				OTHER_SWIFT_FLAGS = "-DLineSDKBinary";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDKObjC;
 				PRODUCT_NAME = LineSDKObjC;
@@ -3170,13 +3180,16 @@
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1174;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
+				ENABLE_MODULE_VERIFIER = YES;
 				INFOPLIST_FILE = LineSDKObjC/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
 					"@loader_path/Frameworks",
 				);
+				MODULE_VERIFIER_SUPPORTED_LANGUAGES = "objective-c objective-c++";
+				MODULE_VERIFIER_SUPPORTED_LANGUAGE_STANDARDS = "gnu11 gnu++14";
 				OTHER_SWIFT_FLAGS = "-DLineSDKBinary";
 				PRODUCT_BUNDLE_IDENTIFIER = com.linecorp.LineSDKObjC;
 				PRODUCT_NAME = LineSDKObjC;

LineSDK/LineSDK.xcodeproj/xcshareddata/xcschemes/LineSDK.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1400"
+   LastUpgradeVersion = "1430"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LineSDK/LineSDK.xcodeproj/xcshareddata/xcschemes/LineSDKObjC.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1400"
+   LastUpgradeVersion = "1430"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LineSDK/LineSDK.xcodeproj/xcshareddata/xcschemes/LineSDKObjCBinary.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1400"
+   LastUpgradeVersion = "1430"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

LineSDK/LineSDK/Crypto/CryptoHelpers.swift

@@ -169,21 +169,7 @@ extension SecKey {
 
         // Get public key from certData
         let copyKey: (SecCertificate) -> SecKey?
-
-        #if targetEnvironment(macCatalyst)
         copyKey = SecCertificateCopyKey
-        #else
-        if #available(iOS 12.0, *) {
-            copyKey = SecCertificateCopyKey
-        } else if #available(iOS 10.3, *) {
-            copyKey = SecCertificateCopyPublicKey
-        } else {
-            throw CryptoError.generalError(
-                reason: .operationNotSupported(
-                    reason: "Loading public key from certificate not supported below iOS 10.3.")
-            )
-        }
-        #endif
 
         guard let key = copyKey(certData) else {
             throw CryptoError.algorithmsFailed(

LineSDK/LineSDK/LineSDKUI/OpenChatUI/Model/FormEntry.swift

@@ -100,10 +100,10 @@ class Option<T: CustomStringConvertible & Equatable>: FormEntry {
     private func render() -> UITableViewCell {
         let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
         cell.textLabel?.font = .systemFont(ofSize: 15.0)
-        cell.textLabel?.textColor = .LineSDKLabel
+        cell.textLabel?.textColor = .label
         cell.textLabel?.text = title
         cell.detailTextLabel?.font = .systemFont(ofSize: 15.0)
-        cell.detailTextLabel?.textColor = .LineSDKSecondaryLabel
+        cell.detailTextLabel?.textColor = .secondaryLabel
         cell.detailTextLabel?.text = selectedOption.description
         cell.accessoryType = .disclosureIndicator
 
@@ -146,7 +146,7 @@ class Toggle: FormEntry {
         let cell = UITableViewCell(style: .default, reuseIdentifier: nil)
         cell.selectionStyle = .none
         cell.textLabel?.font = .systemFont(ofSize: 15.0)
-        cell.textLabel?.textColor = .LineSDKLabel
+        cell.textLabel?.textColor = .label
         cell.textLabel?.text = title
         cell.accessoryView = searchOptionSwitch
         return cell

LineSDK/LineSDK/LineSDKUI/OpenChatUI/Model/FormSection.swift

@@ -44,7 +44,7 @@ class FormSectionRenderer {
     private lazy var footerLabel: UILabel = {
         let label = UILabel()
         label.font = .systemFont(ofSize: 13)
-        label.textColor = .LineSDKSecondaryLabel
+        label.textColor = .secondaryLabel
         label.numberOfLines = 0
         label.text = self.section.footerText
         return label

LineSDK/LineSDK/LineSDKUI/OpenChatUI/View/CountLimitedTextView.swift

@@ -138,14 +138,7 @@ class CountLimitedTextView: UIView {
     private func setup() {
         setupSubviews()
         setupLayouts()
-
-        if #available(iOS 13.0, *) {
-        } else {
-            // A workaround for `textView` not resizing correctly on iOS 12 and earlier for small
-            // screens (like iPhone SE).
-            // This layout issue does not happen on iOS 13.
-            DispatchQueue.main.async { self.clearText() }
-        }
+
     }
 
     private func setupSubviews() {
@@ -206,13 +199,6 @@ class CountLimitedTextView: UIView {
     @objc private func clearText() {
         text = ""
         textView.sizeToFit()
-
-        if #available(iOS 13.0, *) {
-        } else {
-            // A workaround for `textView` not resizing correctly on iOS 12 and earlier.
-            // This layout issue does not happen on iOS 13.
-            DispatchQueue.main.async { self.setNeedsLayout() }
-        }
     }
 
     private func validateString(_ text: String) {

LineSDK/LineSDK/LineSDKUI/OpenChatUI/View/OpenChatRoomDescriptionTableViewCell.swift

@@ -25,11 +25,11 @@ class OpenChatRoomDescriptionTableViewCell: UITableViewCell {
 
     struct TextViewStyle: CountLimitedTextViewStyle {
         let font: UIFont = .boldSystemFont(ofSize: 15)
-        let textColor: UIColor = .LineSDKLabel
+        let textColor: UIColor = .label
         let placeholderFont: UIFont = .boldSystemFont(ofSize: 15)
-        let placeholderColor: UIColor = .LineSDKSecondaryLabel
+        let placeholderColor: UIColor = .secondaryLabel
         let textCountLabelFont: UIFont = .systemFont(ofSize: 12)
-        let textCountLabelColor: UIColor = .LineSDKSecondaryLabel
+        let textCountLabelColor: UIColor = .secondaryLabel
     }
 
     lazy var textView: CountLimitedTextView = {

LineSDK/LineSDK/LineSDKUI/OpenChatUI/View/OpenChatRoomNameTableViewCell.swift

@@ -25,11 +25,11 @@ class OpenChatRoomNameTableViewCell: UITableViewCell {
 
     struct TextViewStyle: CountLimitedTextViewStyle {
         let font: UIFont = .boldSystemFont(ofSize: 18)
-        let textColor: UIColor = .LineSDKLabel
+        let textColor: UIColor = .label
         let placeholderFont: UIFont = .boldSystemFont(ofSize: 18)
-        let placeholderColor: UIColor = .LineSDKSecondaryLabel
+        let placeholderColor: UIColor = .secondaryLabel
         let textCountLabelFont: UIFont = .systemFont(ofSize: 12)
-        let textCountLabelColor: UIColor = .LineSDKSecondaryLabel
+        let textCountLabelColor: UIColor = .secondaryLabel
     }
 
     let textView = CountLimitedTextView(style: TextViewStyle())

LineSDK/LineSDK/LineSDKUI/OpenChatUI/ViewControllers/OpenChatRoomInfoViewController.swift

@@ -24,7 +24,7 @@ import UIKit
 class OpenChatRoomInfoViewController: UITableViewController {
 
     enum Design {
-        static var backgroundColor: UIColor { return .LineSDKSystemGroupedBackground }
+        static var backgroundColor: UIColor { return .systemGroupedBackground }
     }
 
     let onClose = Delegate<OpenChatRoomInfoViewController, Void>()

LineSDK/LineSDK/LineSDKUI/OpenChatUI/ViewControllers/OpenChatUserProfileViewController.swift

@@ -24,16 +24,16 @@ import UIKit
 class OpenChatUserProfileViewController: UIViewController {
 
     enum Design {
-        static var backgroundColor: UIColor { return .LineSDKSystemGroupedBackground }
+        static var backgroundColor: UIColor { return .systemGroupedBackground }
     }
 
     struct TextViewStyle: CountLimitedTextViewStyle {
         let font: UIFont = .systemFont(ofSize: 22, weight: .semibold)
-        let textColor: UIColor = .LineSDKLabel
+        let textColor: UIColor = .label
         let placeholderFont: UIFont = .systemFont(ofSize: 22, weight: .semibold)
-        let placeholderColor = UIColor.LineSDKSecondaryLabel.withAlphaComponent(0.7)
+        let placeholderColor = UIColor.secondaryLabel.withAlphaComponent(0.7)
         let textCountLabelFont: UIFont = .systemFont(ofSize: 12)
-        let textCountLabelColor: UIColor = .LineSDKSecondaryLabel
+        let textCountLabelColor: UIColor = .secondaryLabel
         let showCountLimitLabel = false
         let showUnderBorderLine = true
     }
@@ -107,7 +107,7 @@ class OpenChatUserProfileViewController: UIViewController {
     private lazy var nickNameTipLabel: UILabel = {
         let label = UILabel()
         label.font = .systemFont(ofSize: 13)
-        label.textColor = UIColor.LineSDKSecondaryLabel.withAlphaComponent(0.7)
+        label.textColor = UIColor.secondaryLabel.withAlphaComponent(0.7)
         label.textAlignment = .center
         label.numberOfLines = 0
         label.text = String(format: Localization.string("openchat.create.profile.input.guide"), formItem.roomName)

LineSDK/LineSDK/LineSDKUI/SharingUI/PageViewController/PageTabView.swift

@@ -30,7 +30,7 @@ class PageTabView: UIView {
     class TabView: UIControl {
         enum Design {
             static var titleColor: UIColor { return .systemGray }
-            static var selectedTitleColor: UIColor { return .LineSDKLabel }
+            static var selectedTitleColor: UIColor { return .label }
 
             static var titleFont: UIFont { return .systemFont(ofSize: 15) }
             static var selectedTitleFont: UIFont { return .systemFont(ofSize: 15, weight: .semibold) }
@@ -82,7 +82,7 @@ class PageTabView: UIView {
         enum Design {
             static var height: CGFloat { return 3 }
             static var widthMargin: CGFloat { return 4 }
-            static var color: UIColor { return .LineSDKLabel }
+            static var color: UIColor { return .label }
         }
 
         private let underline: UIView = {

LineSDK/LineSDK/LineSDKUI/SharingUI/PageViewController/PageViewController.swift

@@ -24,7 +24,7 @@ import UIKit
 class PageViewController: UIViewController {
 
     enum Design {
-        static var backgroundColor: UIColor { return .LineSDKSystemBackground }
+        static var backgroundColor: UIColor { return .systemBackground }
     }
 
     struct Page {