Various improvements to Icon, MimeIcon

mimeicon.go

@@ -16,7 +16,7 @@ func NewMimeIcon (mime data.Mime, size tomo.IconSize) *MimeIcon {
 	this := &MimeIcon {
 		Box: tomo.NewBox(),
 	}
-	this.SetRole(tomo.R("objects", "Icon"))
+	this.SetRole(tomo.R("objects", "MimeIcon"))
 	this.SetIcon(mime, size)
 	this.OnIconSetChange(this.handleIconSetChange)
 	return this
@@ -27,7 +27,6 @@ func (this *MimeIcon) SetIcon (mime data.Mime, size tomo.IconSize) {
 	if this.mime == mime && this.size == size { return }
 	this.mime = mime
 	this.size = size
-	this.SetTag(iconSizeString(size), true)
 	this.setTexture(tomo.MimeIconTexture(mime, size))
 }