clean up error messages

1 files changed, 4 insertions, 4 deletions

diff --git a/src/guff/theme/source-manifest.cr b/src/guff/theme/source-manifest.cr
index d0f847b..bfa3486 100644
--- a/src/guff/theme/source-manifest.cr
+++ b/src/guff/theme/source-manifest.cr
@@ -25,16 +25,16 @@ class Guff::Theme::SourceManifest
       raise "unknown theme format: #{r.format}"
     end
 
-    # check for required manifest files
+    # check for required metadata fields
     REQUIRED_METADATA_FIELDS.each do |key, re|
       unless r.metadata[key]?
         # missing field
-        raise "missing required metadata field: #{key}"
+        raise "Missing required metadata field: #{key}"
       end
 
       unless r.metadata[key].match(re)
         # invalid field format
-        raise "metadata field format mismatch: #{key}"
+        raise "Invalid format for metadata field: #{key}"
       end
     end
 
@@ -49,7 +49,7 @@ class Guff::Theme::SourceManifest
       }
 
       if missing_files.size > 0
-        raise "Missing #{type} in manifest: #{missing_files.join(", ")}"
+        raise "Missing #{type}: #{missing_files.join(", ")}"
       end
     end