Excluding default properties of CustomView from the result of String()

audioPlayer.go

@@ -27,7 +27,7 @@ func (player *audioPlayerData) init(session Session) {
 }
 
 func (player *audioPlayerData) String() string {
-	return getViewString(player)
+	return getViewString(player, nil)
 }
 
 func (player *audioPlayerData) htmlTag() string {

canvasView.go

@@ -37,7 +37,7 @@ func (canvasView *canvasViewData) init(session Session) {
 }
 
 func (canvasView *canvasViewData) String() string {
-	return getViewString(canvasView)
+	return getViewString(canvasView, nil)
 }
 
 func (canvasView *canvasViewData) normalizeTag(tag string) string {

checkbox.go

@@ -43,7 +43,7 @@ func (button *checkboxData) init(session Session) {
 }
 
 func (button *checkboxData) String() string {
-	return getViewString(button)
+	return getViewString(button, nil)
 }
 
 func (button *checkboxData) Focusable() bool {

colorPicker.go

@@ -40,7 +40,7 @@ func (picker *colorPickerData) init(session Session) {
 }
 
 func (picker *colorPickerData) String() string {
-	return getViewString(picker)
+	return getViewString(picker, nil)
 }
 
 func (picker *colorPickerData) normalizeTag(tag string) string {

columnLayout.go

@@ -81,7 +81,7 @@ func (ColumnLayout *columnLayoutData) init(session Session) {
 }
 
 func (columnLayout *columnLayoutData) String() string {
-	return getViewString(columnLayout)
+	return getViewString(columnLayout, nil)
 }
 
 func (columnLayout *columnLayoutData) normalizeTag(tag string) string {

customView.go

@@ -13,8 +13,9 @@ type CustomView interface {
 
 // CustomViewData defines a data of a basic custom view
 type CustomViewData struct {
-	tag       string
+	tag           string
-	superView View
+	superView     View
+	defaultParams Params
 }
 
 // InitCustomView initializes fields of CustomView by default values
@@ -37,6 +38,12 @@ func (customView *CustomViewData) SuperView() View {
 
 func (customView *CustomViewData) setSuperView(view View) {
 	customView.superView = view
+	customView.defaultParams = Params{}
+	for _, tag := range view.AllTags() {
+		if value := view.getRaw(tag); value != nil {
+			customView.defaultParams[tag] = value
+		}
+	}
 }
 
 func (customView *CustomViewData) setTag(tag string) {
@@ -252,9 +259,22 @@ func (customView *CustomViewData) ViewIndex(view View) int {
 	return -1
 }
 
+func (customView *CustomViewData) exscludeTags() []string {
+	if customView.superView != nil {
+		exsclude := []string{}
+		for tag, value := range customView.defaultParams {
+			if value == customView.superView.getRaw(tag) {
+				exsclude = append(exsclude, tag)
+			}
+		}
+		return exsclude
+	}
+	return nil
+}
+
 func (customView *CustomViewData) String() string {
 	if customView.superView != nil {
-		return getViewString(customView)
+		return getViewString(customView, customView.exscludeTags())
 	}
 	return customView.tag + " { }"
 }

datePicker.go

@@ -45,7 +45,7 @@ func (picker *datePickerData) init(session Session) {
 }
 
 func (picker *datePickerData) String() string {
-	return getViewString(picker)
+	return getViewString(picker, nil)
 }
 
 func (picker *datePickerData) Focusable() bool {

dropDownList.go

@@ -46,7 +46,7 @@ func (list *dropDownListData) init(session Session) {
 }
 
 func (list *dropDownListData) String() string {
-	return getViewString(list)
+	return getViewString(list, nil)
 }
 
 func (list *dropDownListData) Focusable() bool {

editView.go

@@ -64,7 +64,7 @@ func (edit *editViewData) init(session Session) {
 }
 
 func (edit *editViewData) String() string {
-	return getViewString(edit)
+	return getViewString(edit, nil)
 }
 
 func (edit *editViewData) Focusable() bool {

filePicker.go

@@ -90,7 +90,7 @@ func (picker *filePickerData) init(session Session) {
 }
 
 func (picker *filePickerData) String() string {
-	return getViewString(picker)
+	return getViewString(picker, nil)
 }
 
 func (picker *filePickerData) Focusable() bool {

gridLayout.go

@@ -72,7 +72,7 @@ func (gridLayout *gridLayoutData) init(session Session) {
 }
 
 func (gridLayout *gridLayoutData) String() string {
-	return getViewString(gridLayout)
+	return getViewString(gridLayout, nil)
 }
 
 func (style *viewStyle) setGridCellSize(tag string, value any) bool {

imageView.go

@@ -71,7 +71,7 @@ func (imageView *imageViewData) init(session Session) {
 }
 
 func (imageView *imageViewData) String() string {
-	return getViewString(imageView)
+	return getViewString(imageView, nil)
 }
 
 func (imageView *imageViewData) normalizeTag(tag string) string {

listLayout.go

@@ -56,7 +56,7 @@ func (listLayout *listLayoutData) init(session Session) {
 }
 
 func (listLayout *listLayoutData) String() string {
-	return getViewString(listLayout)
+	return getViewString(listLayout, nil)
 }
 
 func (listLayout *listLayoutData) normalizeTag(tag string) string {

listView.go

@@ -97,7 +97,7 @@ func (listView *listViewData) init(session Session) {
 }
 
 func (listView *listViewData) String() string {
-	return getViewString(listView)
+	return getViewString(listView, nil)
 }
 
 func (listView *listViewData) Views() []View {

mediaPlayer.go

@@ -211,7 +211,7 @@ func (player *mediaPlayerData) init(session Session) {
 }
 
 func (player *mediaPlayerData) String() string {
-	return getViewString(player)
+	return getViewString(player, nil)
 }
 
 func (player *mediaPlayerData) Focusable() bool {

numberPicker.go

@@ -72,7 +72,7 @@ func (picker *numberPickerData) init(session Session) {
 }
 
 func (picker *numberPickerData) String() string {
-	return getViewString(picker)
+	return getViewString(picker, nil)
 }
 
 func (picker *numberPickerData) Focusable() bool {

progressBar.go

@@ -37,7 +37,7 @@ func (progress *progressBarData) init(session Session) {
 }
 
 func (progress *progressBarData) String() string {
-	return getViewString(progress)
+	return getViewString(progress, nil)
 }
 
 func (progress *progressBarData) normalizeTag(tag string) string {

resizable.go

@@ -63,7 +63,7 @@ func (resizable *resizableData) init(session Session) {
 }
 
 func (resizable *resizableData) String() string {
-	return getViewString(resizable)
+	return getViewString(resizable, nil)
 }
 
 func (resizable *resizableData) Views() []View {

stackLayout.go

@@ -82,7 +82,7 @@ func (layout *stackLayoutData) init(session Session) {
 }
 
 func (layout *stackLayoutData) String() string {
-	return getViewString(layout)
+	return getViewString(layout, nil)
 }
 
 func (layout *stackLayoutData) pushFinished(view View, tag string) {

svgImageView.go

@@ -36,7 +36,7 @@ func (imageView *svgImageViewData) init(session Session) {
 }
 
 func (imageView *svgImageViewData) String() string {
-	return getViewString(imageView)
+	return getViewString(imageView, nil)
 }
 
 func (imageView *svgImageViewData) normalizeTag(tag string) string {

tableView.go

@@ -270,7 +270,7 @@ func (table *tableViewData) init(session Session) {
 }
 
 func (table *tableViewData) String() string {
-	return getViewString(table)
+	return getViewString(table, nil)
 }
 
 func (table *tableViewData) normalizeTag(tag string) string {

tabsLayout.go

@@ -99,7 +99,7 @@ func (tabsLayout *tabsLayoutData) init(session Session) {
 }
 
 func (tabsLayout *tabsLayoutData) String() string {
-	return getViewString(tabsLayout)
+	return getViewString(tabsLayout, nil)
 }
 
 func (tabsLayout *tabsLayoutData) currentItem(defaultValue int) int {

textView.go

@@ -33,7 +33,7 @@ func (textView *textViewData) init(session Session) {
 }
 
 func (textView *textViewData) String() string {
-	return getViewString(textView)
+	return getViewString(textView, nil)
 }
 
 func (textView *textViewData) Get(tag string) any {

theme.go

@@ -933,7 +933,7 @@ func (theme *theme) String() string {
 		for _, tag := range tags {
 			if style, ok := styles[tag]; ok && len(style.AllTags()) > 0 {
 				buffer.WriteString("\t\t")
-				writeViewStyle(tag, style, buffer, "\t\t")
+				writeViewStyle(tag, style, buffer, "\t\t", nil)
 				buffer.WriteString(",\n")
 			}
 		}
@@ -984,7 +984,7 @@ func (theme *theme) String() string {
 			for _, tag := range tags {
 				if style, ok := media.styles[tag]; ok && len(style.AllTags()) > 0 {
 					buffer.WriteString("\t\t")
-					writeViewStyle(tag, style, buffer, "\t\t")
+					writeViewStyle(tag, style, buffer, "\t\t", nil)
 					buffer.WriteString(",\n")
 				}
 			}

timePicker.go

@@ -45,7 +45,7 @@ func (picker *timePickerData) init(session Session) {
 }
 
 func (picker *timePickerData) String() string {
-	return getViewString(picker)
+	return getViewString(picker, nil)
 }
 
 func (picker *timePickerData) Focusable() bool {

videoPlayer.go

@@ -47,7 +47,7 @@ func (player *videoPlayerData) init(session Session) {
 }
 
 func (player *videoPlayerData) String() string {
-	return getViewString(player)
+	return getViewString(player, nil)
 }
 
 func (player *videoPlayerData) htmlTag() string {

view.go

@@ -76,6 +76,7 @@ type View interface {
 	htmlProperties(self View, buffer *strings.Builder)
 	cssStyle(self View, builder cssBuilder)
 	addToCSSStyle(addCSS map[string]string)
+	exscludeTags() []string
 
 	onResize(self View, x, y, width, height float64)
 	onItemResize(self View, index string, x, y, width, height float64)
@@ -999,5 +1000,9 @@ func (view *viewData) HasFocus() bool {
 }
 
 func (view *viewData) String() string {
-	return getViewString(view)
+	return getViewString(view, nil)
+}
+
+func (view *viewData) exscludeTags() []string {
+	return nil
 }

viewStyle.go

@@ -710,14 +710,14 @@ func writePropertyValue(buffer *strings.Builder, tag string, value any, indent s
 			buffer.WriteString("[]")
 
 		case 1:
-			writeViewStyle(value[0].Tag(), value[0], buffer, indent)
+			writeViewStyle(value[0].Tag(), value[0], buffer, indent, value[0].exscludeTags())
 
 		default:
 			buffer.WriteString("[\n")
 			indent2 := indent + "\t"
 			for _, v := range value {
 				buffer.WriteString(indent2)
-				writeViewStyle(v.Tag(), v, buffer, indent2)
+				writeViewStyle(v.Tag(), v, buffer, indent2, v.exscludeTags())
 				buffer.WriteString(",\n")
 			}
 
@@ -819,12 +819,18 @@ func writePropertyValue(buffer *strings.Builder, tag string, value any, indent s
 	}
 }
 
-func writeViewStyle(name string, view ViewStyle, buffer *strings.Builder, indent string) {
+func writeViewStyle(name string, view ViewStyle, buffer *strings.Builder, indent string, excludeTags []string) {
 	buffer.WriteString(name)
 	buffer.WriteString(" {\n")
 	indent += "\t"
 
 	writeProperty := func(tag string, value any) {
+		for _, exclude := range excludeTags {
+			if exclude == tag {
+				return
+			}
+		}
+
 		if supportedPropertyValue(value) {
 			buffer.WriteString(indent)
 			buffer.WriteString(tag)
@@ -896,10 +902,10 @@ func writeViewStyle(name string, view ViewStyle, buffer *strings.Builder, indent
 	buffer.WriteString("}")
 }
 
-func getViewString(view View) string {
+func getViewString(view View, excludeTags []string) string {
 	buffer := allocStringBuilder()
 	defer freeStringBuilder(buffer)
-	writeViewStyle(view.Tag(), view, buffer, "")
+	writeViewStyle(view.Tag(), view, buffer, "", excludeTags)
 	return buffer.String()
 
 }

viewsContainer.go

@@ -38,7 +38,7 @@ func (container *viewsContainerData) init(session Session) {
 }
 
 func (container *viewsContainerData) String() string {
-	return getViewString(container)
+	return getViewString(container, nil)
 }
 
 func (container *viewsContainerData) setParentID(parentID string) {