diff --git a/playground/index.html b/playground/index.html
index 41c5ac4f..64598089 100644
--- a/playground/index.html
+++ b/playground/index.html
@@ -51,714 +51,6 @@
 
     <div id="blocks"></div>
 
-    <xml id="toolbox" style="display: none">
-        <category name="Motion" colour="#4C97FF" secondaryColour="#3373CC">
-        <block type="motion_movesteps">
-          <value name="STEPS">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_turnright">
-          <value name="DEGREES">
-            <shadow type="math_number">
-              <field name="NUM">15</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_turnleft">
-          <value name="DEGREES">
-            <shadow type="math_number">
-              <field name="NUM">15</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_pointindirection">
-          <value name="DIRECTION">
-            <shadow type="math_angle">
-              <field name="NUM">90</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_pointtowards">
-          <value name="TOWARDS">
-            <shadow type="motion_pointtowards_menu">
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_gotoxy">
-          <value name="X">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-          <value name="Y">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_goto">
-          <value name="TO">
-            <shadow type="motion_goto_menu">
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_glidesecstoxy">
-          <value name="SECS">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-          <value name="X">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-          <value name="Y">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_changexby">
-          <value name="DX">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_setx">
-          <value name="X">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_changeyby">
-          <value name="DY">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_sety">
-          <value name="Y">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="motion_ifonedgebounce"></block>
-        <block type="motion_setrotationstyle">
-          <value name="STYLE">
-            <shadow type="motion_setrotationstyle_menu"></shadow>
-          </value>
-        </block>
-        <block type="motion_xposition"></block>
-        <block type="motion_yposition"></block>
-        <block type="motion_direction"></block>
-      </category>
-      <category name="Looks" colour="#9966FF" secondaryColour="#774DCB">
-        <block type="looks_sayforsecs">
-          <value name="MESSAGE">
-            <shadow type="text">
-              <field name="TEXT">Hello!</field>
-            </shadow>
-          </value>
-          <value name="SECS">
-            <shadow type="math_number">
-              <field name="NUM">2</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_say">
-          <value name="MESSAGE">
-            <shadow type="text">
-              <field name="TEXT">Hello!</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_thinkforsecs">
-          <value name="MESSAGE">
-            <shadow type="text">
-              <field name="TEXT">Hmm...</field>
-            </shadow>
-          </value>
-          <value name="SECS">
-            <shadow type="math_number">
-              <field name="NUM">2</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_think">
-          <value name="MESSAGE">
-            <shadow type="text">
-              <field name="TEXT">Hmm...</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_show"></block>
-        <block type="looks_hide"></block>
-        <block type="looks_switchcostumeto">
-          <value name="COSTUME">
-            <shadow type="looks_costume"></shadow>
-          </value>
-		    </block>
-        <block type="looks_nextcostume"></block>
-        <block type="looks_nextbackdrop"></block>
-        <block type="looks_switchbackdropto">
-          <value name="BACKDROP">
-            <shadow type="looks_backdrops"></shadow>
-          </value>
-		    </block>
-        <block type="looks_switchbackdroptoandwait">
-          <value name="BACKDROP">
-            <shadow type="looks_backdrops"></shadow>
-          </value>
-		    </block>
-        <block type="looks_changeeffectby">
-          <value name="EFFECT">
-            <shadow type="looks_effectmenu"></shadow>
-          </value>
-          <value name="CHANGE">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_seteffectto">
-          <value name="EFFECT">
-            <shadow type="looks_effectmenu"></shadow>
-          </value>
-          <value name="VALUE">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_cleargraphiceffects"></block>
-        <block type="looks_changesizeby">
-          <value name="CHANGE">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_setsizeto">
-          <value name="SIZE">
-            <shadow type="math_number">
-              <field name="NUM">100</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_gotofront"></block>
-        <block type="looks_gobacklayers">
-          <value name="NUM">
-            <shadow type="math_integer">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="looks_costumeorder"></block>
-        <block type="looks_backdroporder"></block>
-        <block type="looks_backdropname"></block>
-        <block type="looks_size"></block>
-      </category>
-      <category name="Sound" colour="#D65CD6" secondaryColour="#BD42BD">
-        <block type="sound_play">
-          <value name="SOUND_MENU">
-            <shadow type="sound_sounds_option"></shadow>
-          </value>
-        </block>
-        <block type="sound_playuntildone">
-          <value name="SOUND_MENU">
-            <shadow type="sound_sounds_option"></shadow>
-          </value>
-        </block>
-        <block type="sound_stopallsounds"></block>
-        <block type="sound_playdrumforbeats">
-          <value name="DRUMTYPE">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-          <value name="BEATS">
-            <shadow type="math_number">
-              <field name="NUM">0.25</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_restforbeats">
-          <value name="BEATS">
-            <shadow type="math_number">
-              <field name="NUM">0.25</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_playnoteforbeats">
-          <value name="NOTE">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-          <value name="BEATS">
-            <shadow type="math_number">
-              <field name="NUM">0.5</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_setinstrumentto">
-          <value name="INSTRUMENT">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_changevolumeby">
-          <value name="VOLUME">
-            <shadow type="math_number">
-              <field name="NUM">-10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_setvolumeto">
-          <value name="VOLUME">
-            <shadow type="math_number">
-              <field name="NUM">100</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_volume"></block>
-        <block type="sound_changetempoby">
-          <value name="TEMPO">
-            <shadow type="math_number">
-              <field name="NUM">20</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_settempotobpm">
-          <value name="TEMPO">
-            <shadow type="math_number">
-              <field name="NUM">60</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="sound_tempo"></block>
-      </category>
-      <category name="Pen" colour="#00B295" secondaryColour="#0B8E69">
-        <block type="pen_clear"></block>
-        <block type="pen_stamp"></block>
-        <block type="pen_pendown"></block>
-        <block type="pen_penup"></block>
-        <block type="pen_setpencolortocolor">
-          <value name="COLOR">
-            <shadow type="colour_picker">
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_changepencolorby">
-          <value name="COLOR">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_setpencolortonum">
-          <value name="COLOR">
-            <shadow type="math_number">
-              <field name="NUM">0</field>
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_changepenshadeby">
-          <value name="SHADE">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_setpenshadeto">
-          <value name="SHADE">
-            <shadow type="math_number">
-              <field name="NUM">50</field>
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_changepensizeby">
-          <value name="SIZE">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-		    </block>
-        <block type="pen_setpensizeto">
-          <value name="SIZE">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-		    </block>
-      </category>
-      <category name="Data" colour="#FF8C1A" secondaryColour="#DB6E00" custom="VARIABLE">
-      </category>
-      <category name="Lists" colour="#FF8C1A" secondaryColour="#DB6E00">
-        <block type="data_listcontents"></block>
-        <block type="data_addtolist">
-          <value name="ITEM">
-            <shadow type="text">
-              <field name="TEXT">thing</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_deleteoflist">
-          <value name="INDEX">
-            <shadow type="data_listindexall">
-              <field name="INDEX">1</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_insertatlist">
-          <value name="INDEX">
-            <shadow type="data_listindexrandom">
-              <field name="INDEX">1</field>
-            </shadow>
-          </value>
-          <value name="ITEM">
-            <shadow type="text">
-              <field name="TEXT">thing</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_replaceitemoflist">
-          <value name="INDEX">
-            <shadow type="data_listindexrandom">
-              <field name="INDEX">1</field>
-            </shadow>
-          </value>
-          <value name="ITEM">
-            <shadow type="text">
-              <field name="TEXT">thing</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_itemoflist">
-          <value name="INDEX">
-            <shadow type="data_listindexrandom">
-              <field name="INDEX">1</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_lengthoflist"></block>
-        <block type="data_listcontainsitem">
-          <value name="ITEM">
-            <shadow type="text">
-              <field name="TEXT">thing</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="data_showlist"></block>
-        <block type="data_hidelist"></block>
-      </category>
-      <category name="Events" colour="#FFD500" secondaryColour="#CC9900">
-        <block type="event_whenflagclicked"></block>
-        <block type="event_whenkeypressed">
-        </block>
-        <block type="event_whenthisspriteclicked"></block>
-        <block type="event_whenbackdropswitchesto">
-        </block>
-        <block type="event_whengreaterthan">
-          <value name="VALUE">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="event_whenbroadcastreceived">
-        </block>
-        <block type="event_broadcast">
-          <value name="BROADCAST_OPTION">
-            <shadow type="event_broadcast_menu"></shadow>
-          </value>
-        </block>
-        <block type="event_broadcastandwait">
-          <value name="BROADCAST_OPTION">
-            <shadow type="event_broadcast_menu"></shadow>
-          </value>
-        </block>
-      </category>
-      <category name="Control" colour="#FFAB19" secondaryColour="#CF8B17">
-        <block type="control_wait">
-          <value name="DURATION">
-            <shadow type="math_positive_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="control_repeat">
-          <value name="TIMES">
-            <shadow type="math_whole_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="control_forever"></block>
-        <block type="control_if"></block>
-        <block type="control_if_else"></block>
-        <block type="control_wait_until"></block>
-        <block type="control_repeat_until"></block>
-        <block type="control_stop"></block>
-        <block type="control_start_as_clone"></block>
-        <block type="control_create_clone_of">
-          <value name="CLONE_OPTION">
-            <shadow type="control_create_clone_of_menu"></shadow>
-          </value>
-        </block>
-        <block type="control_delete_this_clone"></block>
-      </category>
-      <category name="Sensing" colour="#4CBFE6" secondaryColour="#2E8EB8">
-        <block type="sensing_touchingobject">
-          <value name="TOUCHINGOBJECTMENU">
-            <shadow type="sensing_touchingobjectmenu"></shadow>
-          </value>
-        </block>
-        <block type="sensing_touchingcolor">
-          <value name="COLOR">
-            <shadow type="colour_picker"></shadow>
-          </value>
-        </block>
-        <block type="sensing_coloristouchingcolor">
-          <value name="COLOR">
-            <shadow type="colour_picker"></shadow>
-          </value>
-          <value name="COLOR2">
-            <shadow type="colour_picker"></shadow>
-          </value>
-        </block>
-        <block type="sensing_distanceto">
-          <value name="DISTANCETOMENU">
-            <shadow type="sensing_distancetomenu"></shadow>
-          </value>
-        </block>
-        <block type="sensing_askandwait">
-          <value name="QUESTION">
-            <shadow type="text">
-              <field name="TEXT">What's your name?</field>
-            </shadow>
-          </value>
-        </block>
-  		<block type="sensing_answer"></block>
-	    <block type="sensing_keypressed">
-          <value name="KEY_OPTION">
-            <shadow type="sensing_keyoptions"></shadow>
-          </value>
-      </block>
-  		<block type="sensing_mousedown"></block>
-  		<block type="sensing_mousex"></block>
-  		<block type="sensing_mousey"></block>
-  		<block type="sensing_loudness"></block>
-	    <block type="sensing_videoon">
-          <value name="VIDEOONMENU1">
-            <shadow type="sensing_videoonmenuone"></shadow>
-          </value>
-          <value name="VIDEOONMENU2">
-            <shadow type="sensing_videoonmenutwo"></shadow>
-          </value>
-      </block>
-	    <block type="sensing_videotoggle">
-          <value name="VIDEOTOGGLEMENU">
-            <shadow type="sensing_videotogglemenu"></shadow>
-          </value>
-      </block>
-      <block type="sensing_setvideotransparency">
-        <value name="TRANSPARENCY">
-          <shadow type="math_number">
-            <field name="NUM">50</field>
-          </shadow>
-        </value>
-  		</block>
-  		<block type="sensing_timer"></block>
-  		<block type="sensing_resettimer"></block>
-      <block type="sensing_of">
-        <value name="PROPERTY">
-          <shadow type="sensing_of_property_menu"></shadow>
-        </value>
-        <value name="OBJECT">
-          <shadow type="sensing_of_object_menu"></shadow>
-        </value>
-      </block>
-  	  <block type="sensing_current">
-        <value name="CURRENTMENU">
-          <shadow type="sensing_currentmenu"></shadow>
-        </value>
-      </block>
-  		<block type="sensing_dayssince2000"></block>
-  		<block type="sensing_username"></block>
-	  </category>
-    <category name="Operators" colour="#40BF4A" secondaryColour="#389438">
-        <block type="operator_add">
-          <value name="NUM1">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-          <value name="NUM2">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_subtract">
-          <value name="NUM1">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-          <value name="NUM2">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_multiply">
-          <value name="NUM1">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-          <value name="NUM2">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_divide">
-          <value name="NUM1">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-          <value name="NUM2">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_random">
-          <value name="FROM">
-            <shadow type="math_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-          <value name="TO">
-            <shadow type="math_number">
-              <field name="NUM">10</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_lt">
-          <value name="OPERAND1">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-          <value name="OPERAND2">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_equals">
-          <value name="OPERAND1">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-          <value name="OPERAND2">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_gt">
-          <value name="OPERAND1">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-          <value name="OPERAND2">
-            <shadow type="text">
-              <field name="TEXT"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_and"></block>
-        <block type="operator_or"></block>
-        <block type="operator_not"></block>
-        <block type="operator_join">
-          <value name="STRING1">
-            <shadow type="text">
-              <field name="TEXT">hello</field>
-            </shadow>
-          </value>
-          <value name="STRING2">
-            <shadow type="text">
-              <field name="TEXT">world</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_letter_of">
-          <value name="LETTER">
-            <shadow type="math_whole_number">
-              <field name="NUM">1</field>
-            </shadow>
-          </value>
-          <value name="STRING">
-            <shadow type="text">
-              <field name="TEXT">world</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_length">
-          <value name="STRING">
-            <shadow type="text">
-              <field name="TEXT">world</field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_mod">
-          <value name="NUM1">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-          <value name="NUM2">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_round">
-          <value name="NUM">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-        <block type="operator_mathop">
-          <value name="OPERATOR">
-            <shadow type="operator_mathop_menu"></shadow>
-          </value>
-          <value name="NUM">
-            <shadow type="math_number">
-              <field name="NUM"></field>
-            </shadow>
-          </value>
-        </block>
-      </category>
-      <category name="More Blocks" colour="#FF6680" secondaryColour="#FF3355" custom="PROCEDURE"></category>
-    </xml>
     <!-- FPS counter, Syntax highlighter, Blocks, Renderer -->
     <script src="./vendor.js"></script>
     <!-- VM Worker -->
diff --git a/playground/playground.js b/playground/playground.js
index 2aee59d5..76db62ed 100644
--- a/playground/playground.js
+++ b/playground/playground.js
@@ -50,9 +50,7 @@ window.onload = function() {
     vm.attachRenderer(renderer);
 
     // Instantiate scratch-blocks and attach it to the DOM.
-    var toolbox = document.getElementById('toolbox');
     var workspace = window.Blockly.inject('blocks', {
-        toolbox: toolbox,
         media: './media/',
         zoom: {
             controls: true,