previewPanel.add(buttRGB);
JToggleButton buttRGBA = new JToggleButton(TextureEditor.INSTANCE.Get_IconRGBA());
buttRGBA.setActionCommand("RGBA");
buttRGBA.setToolTipText("Display RGBA blended");
buttRGBA.setBounds(previewImageSize, 2*scrollBarSpace, scrollBarSpace, scrollBarSpace);
buttRGBA.addActionListener(this);
previewPanel.add(buttRGBA);
JToggleButton buttA = new JToggleButton(TextureEditor.INSTANCE.Get_IconA());
buttA.setActionCommand("A");
buttA.setToolTipText("Display Alpha as grayscale");
buttA.setBounds(previewImageSize, 3*scrollBarSpace, scrollBarSpace, scrollBarSpace);