A viewer on an object. Consists of three panes:
Header pane -- category-name, arrows for moving among categories, etc.
List pane -- contents are a list of subparts in the chosen category.
Editing pane -- optional, a detail pane with info relating to the selected element of the list pane.

	editing pane
	contents:notifying:

	entries
	addIsOverColorDetailTo: addTouchesADetailTo: infoButtonFor: phraseForCommandFrom: phraseForVariableFrom: readoutFor:type:readOnly:getSelector:putSelector: slotHeaderFor: wantsRowMenuFor:

get/set slots

arrowSetterButton:args: arrowSetterButtonFor:type: getterButtonFor:type: getterTilesFor:type: makeGetter:event:from: makeGetter:from:forPart: makeSetter:event:from: makeSetter:from:forPart: makeUniversalTilesGetter:event:from: newGetterTilesFor:methodInterface: newMakeGetter:event:from: newMakeGetter:from:forMethodInterface: newMakeGetter:from:forPart: newMakeSetter:event:from: newMakeSetter:from:forPart: newMakeSetterFromInterface:evt:from: newSetterTilesFor:methodInterface: newTilesFor:setter:

	header pane
	addHeaderMorph

	initialization
	initializeFor: initializeFor:categoryChoice:

	list pane

	object fileIn

	support
	booleanPhraseForRetrieverOfType:retrieverOp:player: booleanPhraseFromPhrase: contentsSelection currentVocabulary invisiblySetPlayer: limitClass outerViewer tileForSelf

	categories	top
	adjustColorsAndBordersWithin Adjust the colors and borders of submorphs to suit current fashion
	adoptVocabulary: Adopt the given vocabulary as the one used in this viewer.
	categoryNameWhoseTranslatedWordingIs: Answer the category name with the given wording
	categoryWhoseTranslatedWordingIs: Answer the elementCategory with the given wording
	categoryWording: Make the category with the given wording be my current one.
	chooseCategory The mouse went down on my category-list control; pop up a list of category choices
	chooseCategoryWhoseTranslatedWordingIs: Choose the category with the given wording
	chosenCategorySymbol Answer the inherent category currently being shown, not necessarily the same as the translated word.
	chosenCategorySymbol: Make the given category be my current one.
	currentCategory Answer the symbol representing the receiver's currently-selected category
	downArrowHit
	isTileScriptingElement Answer whether the receiver is a tile-scripting element
	nextCategory Change the receiver to point at the category following the one currently seen
	previousCategory Change the receiver to point at the category preceding the one currently seen
	secreteCategorySymbol Set my chosenCategorySymbol by translating back from its representation in the namePane. Answer the chosenCategorySymbol
	setNaturalLanguageTo: Set the natural language symbol as indicated
	upArrowHit
	updateCategoryNameTo: Update the category name, because of a language change.
	viewerEntryForSymbol: Answer a viewer entry or viewer line associated with the given symbol, or nil if none

	editing pane	top
	contents:notifying: later, spruce this up so that it can accept input such as new method source

	entries	top
	addIsOverColorDetailTo:
	addTouchesADetailTo:
	infoButtonFor: Answer a fully-formed morph that will serve as the 'info button' alongside an entry corresponding to the given slot or script symbol. If no such button is appropriate, answer a transparent graphic that fills the same space.
	phraseForCommandFrom: Answer a phrase for the non-slot-like command represented by aMethodInterface - classic tiles
	phraseForVariableFrom: Return a structure consisting of tiles and controls and a readout representing a 'variable' belonging to the player, complete with an appropriate readout when indicated. Functions in both universalTiles mode and classic mode. Slightly misnamed in that this path is used for any methodInterface that indicates an interesting resultType.
	readoutFor:type:readOnly:getSelector:putSelector: Answer a readout morph for the given part
	slotHeaderFor:
	wantsRowMenuFor: Answer whether a viewer row for the given symbol should have a menu button on it

	get/set slots	top
	arrowSetterButton:args:
	arrowSetterButtonFor:type:
	getterButtonFor:type: Answer a classic-tiles getter button for a part of the given name
	getterTilesFor:type: Answer classic getter for the given name/type
	makeGetter:event:from: Hand the user tiles representing a classic getter on the slot represented by aMorph
	makeGetter:from:forPart: Reorder the arguments for existing event handlers
	makeSetter:event:from: Classic tiles: make a Phrase that comprises a setter of a slot, and hand it to the user.
	makeSetter:from:forPart: Reorder the arguments for existing event handlers
	makeUniversalTilesGetter:event:from: Button in viewer performs this to make a universal-tiles getter and attach it to hand.
	newGetterTilesFor:methodInterface: Return universal tiles for a getter on this property. Record who self is.
	newMakeGetter:event:from: Button in viewer performs this to makea universal-tiles header tile and attach to hand.
	newMakeGetter:from:forMethodInterface: Button in viewer performs this to make a new style tile and attach to hand. (Reorder the arguments for existing event handlers)
	newMakeGetter:from:forPart: Reorder the arguments for existing event handlers
	newMakeSetter:event:from: Button in viewer performs this to make a new style tile and attach to hand.
	newMakeSetter:from:forPart: Reorder the arguments for existing event handlers
	newMakeSetterFromInterface:evt:from: Button in viewer performs this to make a new style tile and attach to hand.
	newSetterTilesFor:methodInterface: Return universal tiles for a setter on this property. Record who self is.
	newTilesFor:setter: Return universal tiles for a getter on this property. Record who self is.

	header pane	top
	addHeaderMorph Add the header at the top of the viewer, with a control for choosing the category, etc.

	initialization	top
	initializeFor: Initialize the category pane to show the #basic category by default
	initializeFor:categoryChoice: Initialize the receiver to be associated with the player and category specified

list pane

top

object fileIn

top

	support	top
	booleanPhraseForRetrieverOfType:retrieverOp:player: Answer a boolean-valued phrase derived from a retriever (e.g. 'car's heading'); this is in order to assure that tiles laid down in a TEST area will indeed produce a boolean result
	booleanPhraseFromPhrase: Answer, if possible, a boolean-valued phrase derived from the phrase provided
	contentsSelection Not well understood why this needs to be here!
	currentVocabulary Answer the vocabulary currently installed in the viewer. The outer StandardViewer object holds this information.
	invisiblySetPlayer:
	limitClass Answer the receiver's limitClass
	outerViewer Answer the StandardViewer or equivalent that contains this object
	tileForSelf Return a tile representing the receiver's viewee