<snapdata remixID="8845906"><project name="U2L4-brickwall" app="Snap! 5.1, http://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" volume="100" pan="0" lines="flat" ternary="true" codify="false" inheritance="false" sublistIDs="false" scheduled="false" id="1"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="217" y="10" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="145,26,68,1" pen="tip" id="8"><costumes><list struct="atomic" id="9"></list></costumes><sounds><list struct="atomic" id="10"></list></sounds><blocks></blocks><variables></variables><scripts><script x="58" y="65"><block s="receiveGo"></block><block s="clear"></block><custom-block s="draw brick wall, number of rows: %s"><l>7</l></custom-block></script></scripts></sprite><watcher var="original point" style="normal" x="10" y="10" color="243,118,29"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="set flag %&apos;which&apos; to %&apos;tf&apos;" type="command" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%s" readonly="true"><options>Presentation mode&#xD;Retina display support&#xD;Long form input dialog&#xD;Plain prototype labels&#xD;Input sliders&#xD;Execute on slider change&#xD;Clicking sound&#xD;Turbo mode&#xD;Flat design&#xD;Keyboard editing&#xD;Table support&#xD;Table lines&#xD;Visible stepping&#xD;Thread safe scripts&#xD;Prefer smooth animations&#xD;Flat line ends&#xD;Codification support&#xD;Inheritance support</options></input><input type="%b"></input></inputs><script><block s="doRun"><block s="reportJSFunction"><list><l>which</l><l>tf</l></list><l>var   stage = this.parentThatIsA(StageMorph),&#xD;        ide = stage.parentThatIsA(IDE_Morph),&#xD;        world = stage.parentThatIsA(WorldMorph);&#xD;&#xD;if (tf != !!tf) return;&#xD;&#xD;try{&#xD;ide.savingPreferences = false;&#xD;&#xD;switch (which) {&#xD;    case &apos;Presentation mode&apos;:&#xD;        if (tf != ide.isAppMode) ide.toggleAppMode();&#xD;        break;&#xD;    case &apos;Retina display support&apos;:&#xD;        if (tf != isRetinaEnabled()) ide.toggleRetina();&#xD;        break;&#xD;    case &apos;Long form input dialog&apos;:&#xD;        if (tf != InputSlotDialogMorph.prototype.isLaunchingExpanded)&#xD;            ide.toggleLongFormInputDialog();&#xD;        break;&#xD;    case &apos;Plain prototype labels&apos;:&#xD;        if (tf != BlockLabelPlaceHolderMorph.prototype.plainLabel)&#xD;            ide.togglePlainPrototypeLabels();&#xD;        break;&#xD;    case &apos;Input sliders&apos;:&#xD;        MorphicPreferences.useSliderForInput = tf;&#xD;        break;&#xD;    case &apos;Execute on slider change&apos;:&#xD;        ArgMorph.prototype.executeOnSliderEdit = tf;&#xD;        break;&#xD;    case &apos;Clicking sound&apos;:&#xD;        if (tf != !!BlockMorph.prototype.snapSound)&#xD;            BlockMorph.prototype.toggleSnapSound();&#xD;        break;&#xD;    case &apos;Turbo mode&apos;:&#xD;        if (tf != stage.isFastTracked)&#xD;            ide.toggleFastTracking();&#xD;        break;&#xD;    case &apos;Flat design&apos;:&#xD;        if (tf == MorphicPreferences.isFlat) break;&#xD;        if (tf)&#xD;            ide.flatDesign();&#xD;        else&#xD;            ide.defaultDesign();&#xD;        break;&#xD;    case &apos;Keyboard editing&apos;:&#xD;            ScriptsMorph.prototype.enableKeyboard = tf;&#xD;        break;&#xD;    case &apos;Table support&apos;:&#xD;            List.prototype.enableTables = tf;&#xD;        break;&#xD;    case &apos;Table lines&apos;:&#xD;                TableMorph.prototype.highContrast = tf;&#xD;        break;&#xD;    case &apos;Visible stepping&apos;:&#xD;        if (tf != Process.prototype.enableSingleStepping)&#xD;            ide.toggleSingleStepping();&#xD;        break;&#xD;    case &apos;Thread safe scripts&apos;:&#xD;        stage.isThreadSafe = tf;&#xD;        break;&#xD;    case &apos;Prefer smooth 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