Reduce image sizes by using greyscale.

blocks/text.js

@@ -55,9 +55,9 @@ Blockly.Blocks['text'] = {
    */
   newQuote_: function(open) {
     if (open == this.RTL) {
-      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAA0UlEQVQY023QP0oDURSF8e8MImhlUIiCjWKhrUUK3YCIVkq6bMAF2LkCa8ENWLoNS1sLEQKprMQ/GBDks3kDM+Oc8nfPfTxuANQTYBeYAvdJLL4FnAFfwF2ST9Rz27kp5YH/kwrYp50LdaXHAU4rYNYzWAdeenx7AbgF5sAhcARsAkkyVQ+ACbAKjIGqta4+l78udXxc/LiJG+qvet0pV+q7+tHE+iJzdbGz8FhmOzVcqj/qq7rcKI7Ut1Leq70C1oCrJMMk343HB8ADMEzyVOMff72l48gwfqkAAAAASUVORK5CYII=';
+      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAqUlEQVQI1z3KvUpCcRiA8ef9E4JNHhI0aFEacm1o0BsI0Slx8wa8gLauoDnoBhq7DcfWhggONDmJJgqCPA7neJ7p934EOOKOnM8Q7PDElo/4x4lFb2DmuUjcUzS3URnGib9qaPNbuXvBO3sGPHJDRG6fGVdMSeWDP2q99FQdFrz26Gu5Tq7dFMzUvbXy8KXeAj57cOklgA+u1B5AoslLtGIHQMaCVnwDnADZIFIrXsoXrgAAAABJRU5ErkJggg==';
     } else {
-      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAvklEQVQY022PoapCQRRF97lBVDRYhBcEQcP1BwS/QLAqr7xitZn0HzRr8Rts+htmQdCqSbQIwmMZPMIw3lVmZu0zG44UAFSBLdBVBDAFZqFo8eYKtANfBC7AE5h8ZNOHd1FrDnh4VgmDO3ADkujDHPgHfkLZ84bfaLjg/hD6RFLq9z6wBDr+rvuZB1bAEDABY76pA2mGHyWSjvqmIemc4WsCLKOp4nssIj8wD8qS/iSVJK3N7OTeJPV9n72ZbV7iDuSc2BaQBQAAAABJRU5ErkJggg==';
+      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAn0lEQVQI1z3OMa5BURSF4f/cQhAKjUQhuQmFNwGJEUi0RKN5rU7FHKhpjEH3TEMtkdBSCY1EIv8r7nFX9e29V7EBAOvu7RPjwmWGH/VuF8CyN9/OAdvqIXYLvtRaNjx9mMTDyo+NjAN1HNcl9ZQ5oQMM3dgDUqDo1l8DzvwmtZN7mnD+PkmLa+4mhrxVA9fRowBWmVBhFy5gYEjKMfz9AylsaRRgGzvZAAAAAElFTkSuQmCC';
     }
     return new Blockly.FieldImage(file, 12, 12, '"');
   }

blocks_compressed.js

@@ -120,7 +120,7 @@ document.createElement("mutation");a.setAttribute("value",Number(this.hasReturnV
 b.type&&this.hasReturnValue_?(this.removeInput("VALUE"),this.appendDummyInput("VALUE").appendField(Blockly.Msg.PROCEDURES_DEFRETURN_RETURN),this.hasReturnValue_=!1):"procedures_defreturn"!=b.type||this.hasReturnValue_||(this.removeInput("VALUE"),this.appendValueInput("VALUE").appendField(Blockly.Msg.PROCEDURES_DEFRETURN_RETURN),this.hasReturnValue_=!0),this.setWarningText(null)):this.setWarningText(Blockly.Msg.PROCEDURES_IFRETURN_WARNING)}}};
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.Blocks.texts={};Blockly.Blocks.texts.HUE=160;
-Blockly.Blocks.text={init:function(){this.setHelpUrl(Blockly.Msg.TEXT_TEXT_HELPURL);this.setColour(Blockly.Blocks.texts.HUE);this.appendDummyInput().appendField(this.newQuote_(!0)).appendField(new Blockly.FieldTextInput(""),"TEXT").appendField(this.newQuote_(!1));this.setOutput(!0,"String");this.setTooltip(Blockly.Msg.TEXT_TEXT_TOOLTIP)},newQuote_:function(a){return new Blockly.FieldImage(a==this.RTL?"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAA0UlEQVQY023QP0oDURSF8e8MImhlUIiCjWKhrUUK3YCIVkq6bMAF2LkCa8ENWLoNS1sLEQKprMQ/GBDks3kDM+Oc8nfPfTxuANQTYBeYAvdJLL4FnAFfwF2ST9Rz27kp5YH/kwrYp50LdaXHAU4rYNYzWAdeenx7AbgF5sAhcARsAkkyVQ+ACbAKjIGqta4+l78udXxc/LiJG+qvet0pV+q7+tHE+iJzdbGz8FhmOzVcqj/qq7rcKI7Ut1Leq70C1oCrJMMk343HB8ADMEzyVOMff72l48gwfqkAAAAASUVORK5CYII=":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAYAAACALL/6AAAAvklEQVQY022PoapCQRRF97lBVDRYhBcEQcP1BwS/QLAqr7xitZn0HzRr8Rts+htmQdCqSbQIwmMZPMIw3lVmZu0zG44UAFSBLdBVBDAFZqFo8eYKtANfBC7AE5h8ZNOHd1FrDnh4VgmDO3ADkujDHPgHfkLZ84bfaLjg/hD6RFLq9z6wBDr+rvuZB1bAEDABY76pA2mGHyWSjvqmIemc4WsCLKOp4nssIj8wD8qS/iSVJK3N7OTeJPV9n72ZbV7iDuSc2BaQBQAAAABJRU5ErkJggg==",
+Blockly.Blocks.text={init:function(){this.setHelpUrl(Blockly.Msg.TEXT_TEXT_HELPURL);this.setColour(Blockly.Blocks.texts.HUE);this.appendDummyInput().appendField(this.newQuote_(!0)).appendField(new Blockly.FieldTextInput(""),"TEXT").appendField(this.newQuote_(!1));this.setOutput(!0,"String");this.setTooltip(Blockly.Msg.TEXT_TEXT_TOOLTIP)},newQuote_:function(a){return new Blockly.FieldImage(a==this.RTL?"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAqUlEQVQI1z3KvUpCcRiA8ef9E4JNHhI0aFEacm1o0BsI0Slx8wa8gLauoDnoBhq7DcfWhggONDmJJgqCPA7neJ7p934EOOKOnM8Q7PDElo/4x4lFb2DmuUjcUzS3URnGib9qaPNbuXvBO3sGPHJDRG6fGVdMSeWDP2q99FQdFrz26Gu5Tq7dFMzUvbXy8KXeAj57cOklgA+u1B5AoslLtGIHQMaCVnwDnADZIFIrXsoXrgAAAABJRU5ErkJggg==":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAn0lEQVQI1z3OMa5BURSF4f/cQhAKjUQhuQmFNwGJEUi0RKN5rU7FHKhpjEH3TEMtkdBSCY1EIv8r7nFX9e29V7EBAOvu7RPjwmWGH/VuF8CyN9/OAdvqIXYLvtRaNjx9mMTDyo+NjAN1HNcl9ZQ5oQMM3dgDUqDo1l8DzvwmtZN7mnD+PkmLa+4mhrxVA9fRowBWmVBhFy5gYEjKMfz9AylsaRRgGzvZAAAAAElFTkSuQmCC",
 12,12,'"')}};
 Blockly.Blocks.text_join={init:function(){this.setHelpUrl(Blockly.Msg.TEXT_JOIN_HELPURL);this.setColour(Blockly.Blocks.texts.HUE);this.itemCount_=2;this.updateShape_();this.setOutput(!0,"String");this.setMutator(new Blockly.Mutator(["text_create_join_item"]));this.setTooltip(Blockly.Msg.TEXT_JOIN_TOOLTIP)},mutationToDom:function(){var a=document.createElement("mutation");a.setAttribute("items",this.itemCount_);return a},domToMutation:function(a){this.itemCount_=parseInt(a.getAttribute("items"),10);
 this.updateShape_()},decompose:function(a){var b=Blockly.Block.obtain(a,"text_create_join_container");b.initSvg();for(var c=b.getInput("STACK").connection,d=0;d<this.itemCount_;d++){var e=Blockly.Block.obtain(a,"text_create_join_item");e.initSvg();c.connect(e.previousConnection);c=e.nextConnection}return b},compose:function(a){a=a.getInputTargetBlock("STACK");for(var b=[],c=0;a;)b[c]=a.valueConnection_,a=a.nextConnection&&a.nextConnection.targetBlock(),c++;this.itemCount_=c;this.updateShape_();for(c=