diff --git a/leaf.php b/leaf.php
index f656ebf..933beb9 100644
--- a/leaf.php
+++ b/leaf.php
@@ -1,8 +1,7 @@
 <?php
 
 // Leaf - Tools for Book Scans
-$version = "0.8.6";
-$debug = 1;
+$version = "0.8.7";
 $time_start = microtime(true);
 date_default_timezone_set("America/Los_Angeles");
 
@@ -15,7 +14,7 @@ if (in_array($cores,$reasonable_cores)) {
 	} else {
 	$xt = 2;
 	}
-
+	
 // Functions
 
 function levels_ps_to_imgk($string) {
@@ -24,8 +23,8 @@ function levels_ps_to_imgk($string) {
 		msg("Invalid levels string",1);
 		} else {
 		$black = (number_format(($parts[0]/253),5)*100)."%";
-		$white = (number_format(($parts[1]/255),5)*100)."%";
-		$gamma = $parts[2];
+		$white = (number_format(($parts[2]/255),5)*100)."%";
+		$gamma = $parts[1];
 		return $black.",".$white.",".$gamma;
 		}
 	}
@@ -65,7 +64,7 @@ function multiexec($thread, $x, $null = true) {
 		$exec = implode($pipe." & ",$cmd).$pipe." & wait";
 		echo $echo;
 		if ($debug) {
-			echo "\n".str_replace($pipe." & ", "\n\n", $exec)."\n";
+			echo "\n".str_replace($pipe." & ", "\n\n", $exec)."\n\n";
 			}
 		@exec($exec);
 		}
@@ -144,8 +143,13 @@ function args($query) {
 
 function Welcome($msg) {
 	global $version;
-	$out = "\033[1;1H\033[2J"; // clear screen
-	$out .= bashcolor("Leaf Version: ".$version, "white", "magenta")." ".shell_exec("date");
+	global $debug;
+	if ($debug) {
+		$out .= bashcolor("Leaf Version: ".$version." debug", "white", "red")." ".shell_exec("date");
+		} else {
+		$out = "\033[1;1H\033[2J"; // clear screen
+		$out .= bashcolor("Leaf Version: ".$version, "white", "magenta")." ".shell_exec("date");
+		}
 	$out .= $msg."\n\n";
 	return $out;
 	}
@@ -183,6 +187,12 @@ if (args("dir") && !is_dir(args("dir"))) {
 if (!is_dir("scratch")) {
 	mkdir("scratch");
 	}
+	
+if (args("debug")) {
+	$debug = 1;
+	} else {
+	$debug = 0;
+	}
 
 ////////////////////////////////////////////////////////////////////////////////////////////////
 // Note: Help
@@ -207,18 +217,18 @@ deskew                      detect rotation angles
     -nomap                  don't use dmaps
 depaper						divide page with itself using mask (better despine)
     -mask=<file>            mask file for spine-left image
-    -mpush=<levels>         levels for divide map (ex. \"0-253,0-255,0-2\")
+    -mpush=<levels>         levels for divide map (ex. \"0-253,0-2,0-255\")
     -mix=<0-100> (null)     percentage mix with original (90% = mostly og)
     -skip=<label> (null)    skip files with this label
 despine                     remove shadow from spine
-    -levels=<params>        levels for overlay (ex. \"0-253,0-255,0-2\")
+    -levels=<params>        levels for overlay (ex. \"0-253,0-2,0-255\")
     -width=<pixels> (300)   spine width in pixels
     -q=<0-100> (auto)       jpeg quality, default read from source or 95
 divide                      wrapper for imagemagick Divide_Src
     -map=<file>             specify brightness file
-    -mpush=<levels>         levels for map (ex. \"0-253,0-255,0-2\") or \"auto\"
+    -mpush=<levels>         levels for map (ex. \"0-253,0-2,0-255\") or \"auto\"
     -blur=<pixels>          apply in-place blur to map (slow/dumb)
-    -levels=<params>        levels adjustment for resulting image (ex. \"0-253,0-255,0-2\")
+    -levels=<params>        levels adjustment for resulting image (ex. \"0-253,0-2,0-255\")
     -q=<quality> (95)       quality out of 100
     -pages                  map file is for LR rotated pages
     -mix=<0-100>            percentage mix with original (90% = mostly og)
@@ -231,7 +241,7 @@ generate                    create final jpg images for pdf creation
     -pixels=<num>           scale to x pixels on longest side
     -inches=<num>           set dpi to x inches on longest side
     -q=<0-100> (90)         jpeg quality
-    -levels=<params>        photoshop levels adjustment (ex. \"0-253,0-255,0-2\")
+    -levels=<params>        photoshop levels adjustment (ex. \"0-253,0-2,0-255\")
     -px=<num>               png size multiplier
     -plevels=<params>       png levels adjustment (otherwise calculated from adjust)
     -pt=<0-255>             use threshold method with photoshop level value
@@ -630,13 +640,13 @@ if (isset($spine)) {
 
 foreach ($jpg as $parts) {
 
-	continue;
-
 	$file = $parts[0];
 	$output = $dest."/".basename($file);
 	
 	if (isset($parts[3]) && $parts[3] == 1) {
 		
+		if (args("skipg")) {	continue; }
+		
 		$msg = "Processing greyscale page ".$file." @ ".$dims."!";
 		$cmd = "convert -resize ".$dims."\! -colorspace gray -type TrueColor ";
 		
@@ -648,6 +658,8 @@ foreach ($jpg as $parts) {
 		
 		} else {
 		
+		if (args("skipc")) {	continue; }
+		
 		$msg = "Processing color page ".$file." @ ".$dims."!";
 		$cmd = "convert -resize ".$dims."\! ";
 		
@@ -683,8 +695,8 @@ echo "\n";
 msg("Setting DPI: ");
 multiexec($thread_b,$xt);
 
-if (isset($bitmap)) {
-
+if (isset($bitmap) && !args("skipb")) {
+	
 	if (!args("pt")) {
 
 		if (args("levels")) {
@@ -734,12 +746,12 @@ if (isset($bitmap)) {
 			
 			if (args("pc") == "2!") { // a b&w bitmap image with an intermediary antialiased step (darker text)
 			
-				$msg .= " (".$threshold.", ".$pl.")";
+				$msg .= " (".$threshold.", ".args("pc").")";
 				$cmd = "convert \( \( \( ".$file." -threshold ".$threshold." \) -set colorspace sRGB -type truecolor \) -resize ".$pngdims."\! \) -threshold 95% ".$output;
 			
 				} elseif (args("pc") == "3") { // a b&w bitmap image with an additional color for antialiasing
 				
-				$msg .= " (".$threshold.", ".$pl.")";
+				$msg .= " (".$threshold.", ".args("pc").")";
 				$cmd = "convert \( \( \( ".$file." -threshold ".$threshold." \) -set colorspace sRGB -type truecolor \) -resize ".$pngdims."\! \) -set colorspace Grayscale -colors 4 -depth 2 ".$output;
 				
 				} else { // a b&w bitmap image
@@ -753,12 +765,12 @@ if (isset($bitmap)) {
 			
 			if (args("pc") == "2!") { // a b&w bitmap image with an intermediary antialiased step (darker text)
 			
-				$msg .= " (".$radjust.", ".$pl.")";
+				$msg .= " (".$radjust.", ".args("pc").")";
 				$cmd = "convert \( \( \( ".$file." -level ".$radjust." -monochrome -colors 2 -depth 1 ".$negate."\) -set colorspace sRGB -type truecolor \) -resize ".$pngdims."\! \) -threshold 95% ".$output;
 			
 				} elseif (args("pc") == "3") { // a b&w bitmap image with an additional color for antialiasing
 				
-				$msg .= " (".$radjust.", ".$pl.")";
+				$msg .= " (".$radjust.", ".args("pc").")";
 				$cmd = "convert \( ".$file." -level ".$radjust." -resize ".$pngdims."\! \) -set colorspace Grayscale -colors 4 -depth 2 ".$output;
 				
 				} else { // a b&w bitmap image