Avoid default params

internal/util-logging/src/main/scala/sbt/internal/util/ConsoleAppender.scala

@@ -149,7 +149,7 @@ object ConsoleAppender {
     }
   }
 
-  val formatEnabled =
+  val formatEnabled: Boolean =
     {
       import java.lang.Boolean.{ getBoolean, parseBoolean }
       val value = System.getProperty("sbt.log.format")
@@ -180,8 +180,16 @@ object ConsoleAppender {
 
   def apply(out: PrintStream): ConsoleAppender = apply(generateName, ConsoleOut.printStreamOut(out))
   def apply(out: PrintWriter): ConsoleAppender = apply(generateName, ConsoleOut.printWriterOut(out))
-  def apply(name: String = generateName, out: ConsoleOut = ConsoleOut.systemOut, ansiCodesSupported: Boolean = formatEnabled,
+  def apply(): ConsoleAppender = apply(generateName, ConsoleOut.systemOut)
-    useColor: Boolean = formatEnabled, suppressedMessage: SuppressedTraceContext => Option[String] = noSuppressedMessage): ConsoleAppender =
+  def apply(name: String): ConsoleAppender = apply(name, ConsoleOut.systemOut, formatEnabled, formatEnabled, noSuppressedMessage)
+  def apply(out: ConsoleOut): ConsoleAppender = apply(generateName, out, formatEnabled, formatEnabled, noSuppressedMessage)
+  def apply(name: String, out: ConsoleOut): ConsoleAppender = apply(name, out, formatEnabled, formatEnabled, noSuppressedMessage)
+  def apply(name: String, out: ConsoleOut, suppressedMessage: SuppressedTraceContext => Option[String]): ConsoleAppender =
+    apply(name, out, formatEnabled, formatEnabled, suppressedMessage)
+  def apply(name: String, out: ConsoleOut, useColor: Boolean): ConsoleAppender =
+    apply(name, out, formatEnabled, useColor, noSuppressedMessage)
+  def apply(name: String, out: ConsoleOut, ansiCodesSupported: Boolean,
+    useColor: Boolean, suppressedMessage: SuppressedTraceContext => Option[String]): ConsoleAppender =
     {
       val appender = new ConsoleAppender(name, out, ansiCodesSupported, useColor, suppressedMessage)
       appender.start

internal/util-logging/src/main/scala/sbt/internal/util/MainLogging.scala

@@ -48,14 +48,15 @@ object MainAppender {
   def defaultScreen(name: String, console: ConsoleOut, suppressedMessage: SuppressedTraceContext => Option[String]): Appender =
     ConsoleAppender(name, console, suppressedMessage = suppressedMessage)
 
-  def defaultBacked(
+  def defaultBacked: PrintWriter => Appender = defaultBacked(generateGlobalBackingName, ConsoleAppender.formatEnabled)
-    loggerName: String = generateGlobalBackingName,
+  def defaultBacked(loggerName: String): PrintWriter => Appender = defaultBacked(loggerName, ConsoleAppender.formatEnabled)
-    useColor: Boolean = ConsoleAppender.formatEnabled
+  def defaultBacked(useColor: Boolean): PrintWriter => Appender = defaultBacked(generateGlobalBackingName, useColor)
-  ): PrintWriter => Appender =
+  def defaultBacked(loggerName: String, useColor: Boolean): PrintWriter => Appender =
     to => {
       ConsoleAppender(
         ConsoleAppender.generateName,
-        ConsoleOut.printWriterOut(to), useColor = useColor
+        ConsoleOut.printWriterOut(to),
+        useColor = useColor
       )
     }