.git ignore file has been added

.gitignore

@@ -0,0 +1 @@
+ColorUtils.xcodeproj

ColorUtils.xcodeproj/project.pbxproj

@@ -139,7 +139,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1120;
-				LastUpgradeCheck = 1120;
+				LastUpgradeCheck = 1130;
 				ORGANIZATIONNAME = "Kyrylo Zharenkov";
 				TargetAttributes = {
 					4C1C3FC424125B98002B2052 = {
@@ -314,6 +314,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				SDKROOT = macosx;
+				SWIFT_COMPILATION_MODE = wholemodule;
 			};
 			name = Release;
 		};

ColorUtils.xcodeproj/xcshareddata/xcschemes/UnitTests.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1120"
+   LastUpgradeVersion = "1130"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

ColorUtils.xcodeproj/xcuserdata/tatyana.ryabkova.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>ColorUtils.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>1</integer>
+		</dict>
+		<key>UnitTests.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>