Remove Splash syntax highlighter dependencyremove-splash-highlighter

Splash only highlights Swift, leaving every other language unhighlighted.
Drop the dependency entirely and render file contents as plain text until a
broader-coverage highlighter is adopted.

- Remove `import Splash` and the Splash-backed theming in FileTreeView
- Simplify CodeSyntaxHighlighter to emit plain attributed text
- Remove the Splash SwiftPM package reference and product dependency

Refs https://github.com/zerolabsco/hutch/issues/16

Co-Authored-By: Claude Opus 4.8 <[email protected]>

2 files changed, 0 insertions, 26 deletions

diff --git a/Hutch.xcodeproj/project.pbxproj b/Hutch.xcodeproj/project.pbxproj
index 409df4b..5e410eb 100644
--- a/Hutch.xcodeproj/project.pbxproj
+++ b/Hutch.xcodeproj/project.pbxproj
@@ -20,7 +20,6 @@
 		8BE082012F80000100000001 /* HutchWidgetExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BE081F62F80000100000001 /* HutchWidgetExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BE083012F81000100000001 /* HutchSafariExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = 8BE083032F81000100000001 /* HutchSafariExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		8BF100032F9A000100000001 /* Markdown in Frameworks */ = {isa = PBXBuildFile; productRef = 8BF100022F9A000100000001 /* Markdown */; };
-		8BF100052F9A000100000002 /* Splash in Frameworks */ = {isa = PBXBuildFile; productRef = 8BF100042F9A000100000002 /* Splash */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -149,7 +148,6 @@
 			buildActionMask = 2147483647;
 			files = (
 				8BF100032F9A000100000001 /* Markdown in Frameworks */,
-				8BF100052F9A000100000002 /* Splash in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -254,7 +252,6 @@
 			name = Hutch;
 			packageProductDependencies = (
 				8BF100022F9A000100000001 /* Markdown */,
-				8BF100042F9A000100000002 /* Splash */,
 			);
 			productName = Hutch;
 			productReference = 8B4B28D12F6704280045FA19 /* Hutch.app */;
@@ -361,7 +358,6 @@
 			minimizedProjectReferenceProxies = 1;
 			packageReferences = (
 				8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */,
-				8BF100062F9A000100000002 /* XCRemoteSwiftPackageReference "Splash" */,
 			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = 8B4B28D22F6704280045FA19 /* Products */;
@@ -883,14 +879,6 @@
 				minimumVersion = 0.8.0;
 			};
 		};
-		8BF100062F9A000100000002 /* XCRemoteSwiftPackageReference "Splash" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://github.com/JohnSundell/Splash";
-			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 0.16.0;
-			};
-		};
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
@@ -899,11 +887,6 @@
 			package = 8BF100012F9A000100000001 /* XCRemoteSwiftPackageReference "swift-markdown" */;
 			productName = Markdown;
 		};
-		8BF100042F9A000100000002 /* Splash */ = {
-			isa = XCSwiftPackageProductDependency;
-			package = 8BF100062F9A000100000002 /* XCRemoteSwiftPackageReference "Splash" */;
-			productName = Splash;
-		};
 /* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 8B4B28C92F6704280045FA19 /* Project object */;
diff --git a/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
index 55263b9..417e4d7 100644
--- a/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
+++ b/Hutch.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -2,15 +2,6 @@
   "originHash" : "65542d8a5fbbad8dd7d07c8901c1cc48b3aba12cef8da1f062bd28d9b3a6ba50",
   "pins" : [
     {
-      "identity" : "splash",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/JohnSundell/Splash",
-      "state" : {
-        "revision" : "7f4df436eb78fe64fe2c32c58006e9949fa28ad8",
-        "version" : "0.16.0"
-      }
-    },
-    {
       "identity" : "swift-cmark",
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/swiftlang/swift-cmark.git",