add option for colored coin output creation.

lib/bcoin/tx.js

@@ -407,6 +407,16 @@ TX.prototype.scriptOutput = function scriptOutput(output, options) {
       assert(n >= 1 && n <= 3);
 
     script = bcoin.script.multisig(keys, m, n);
+
+    // make it p2sh
+    if (options.scripthash) {
+      var hash = utils.ripesha(bcoin.script.encode(script));
+      script = [
+        'hash160',
+        hash,
+        'eq'
+      ];
+    }
   } else if (bcoin.wallet.validateAddress(options.address, 'scripthash')) {
     // p2sh transaction
     // https://github.com/bitcoin/bips/blob/master/bip-0016.mediawiki
@@ -426,18 +436,15 @@ TX.prototype.scriptOutput = function scriptOutput(output, options) {
       'eqverify',
       'checksig'
     ];
-  }
+  } else if (options.color) {
-
+    var color = options.color;
-  // make it p2sh
+    if (typeof color === 'string')
-  if (options.hash) {
+      color = utils.ascii2array(color);
-    var redeem = script;
+    assert(color.length <= 40);
-    var hash = utils.ripesha(bcoin.script.encode(redeem));
     script = [
-      'hash160',
+      'ret',
-      hash,
+      color
-      'eq'
     ];
-    script.redeem = redeem;
   }
 
   output.script = script;