Service#summary cleaned a bit.

Not provided tokens will also be printed in red.

src/main.cr

@@ -1,5 +1,6 @@
 require "option_parser"
 require "yaml"
+require "colorize"
 
 # Those are set to local to make testing easier.
 PID_DIRECTORY = "./pid"
@@ -302,17 +303,31 @@ class Service
 	def summary
 		"Name: #{name}\n" +
 			"Environment: #{environment.name} (#{environment.type.to_s.downcase})\n" +
+			(
+				if provides.size > 0
 					"Provides:\n" +
-			(provides.map { |x| "  - " + x.token + "\n" }).join +
+					(provides.map { |x| "  - " + x.token + "\n" }).join
+				else
+					""
+				end
+			) +
+			(
+				if @reference.consumes.size > 0
 					"Consumes:\n" +
 					(@reference.consumes.map { |x|
 						provider = @providers[x.token]?
 						if provider
-					"  - #{x.token} (from #{provider.to_s})\n" 
+							"  - #{x.token} (from #{provider.id})\n"
 						else
-					"  - #{x.token} (NOT CURRENTLY PROVIDED)\n"
+							"  - #{x.token} " +
+								"(NOT CURRENTLY PROVIDED)".colorize(:red).to_s +
+								"\n"
 						end
 					}).join
+				else
+					""
+				end
+			)
 	end
 
 	class_getter all = [] of Service