[feature] Update attachment format, receive + send focalPoint prop + use it on the frontend (#4052)

* [feature] Update attachment format, receive + send `focalPoint` prop + use it on the frontend

* whoops

* boop

* restore function signature of ExtractAttachments

internal/ap/extract.go

@@ -634,32 +634,38 @@ func ExtractContent(i WithContent) gtsmodel.Content {
 	return content
 }
 
-// ExtractAttachments attempts to extract barebones MediaAttachment objects from given AS interface type.
+// ExtractAttachments attempts to extract barebones
+// MediaAttachment objects from given AS interface type.
 func ExtractAttachments(i WithAttachment) ([]*gtsmodel.MediaAttachment, error) {
 	attachmentProp := i.GetActivityStreamsAttachment()
 	if attachmentProp == nil {
 		return nil, nil
 	}
 
-	var errs gtserror.MultiError
+	var (
+		attachments = make([]*gtsmodel.MediaAttachment, 0, attachmentProp.Len())
+		errs        gtserror.MultiError
+	)
 
-	attachments := make([]*gtsmodel.MediaAttachment, 0, attachmentProp.Len())
 	for iter := attachmentProp.Begin(); iter != attachmentProp.End(); iter = iter.Next() {
 		t := iter.GetType()
 		if t == nil {
 			errs.Appendf("nil attachment type")
 			continue
 		}
-		attachmentable, ok := t.(Attachmentable)
+
+		attachmentable, ok := ToAttachmentable(t)
 		if !ok {
-			errs.Appendf("incorrect attachment type: %T", t)
+			errs.Appendf("could not cast %T to Attachmentable", t)
 			continue
 		}
+
 		attachment, err := ExtractAttachment(attachmentable)
 		if err != nil {
 			errs.Appendf("error extracting attachment: %w", err)
 			continue
 		}
+
 		attachments = append(attachments, attachment)
 	}
 
@@ -681,7 +687,10 @@ func ExtractAttachment(i Attachmentable) (*gtsmodel.MediaAttachment, error) {
 		RemoteURL:   remoteURL.String(),
 		Description: ExtractDescription(i),
 		Blurhash:    ExtractBlurhash(i),
-		Processing:  gtsmodel.ProcessingStatusReceived,
+		FileMeta: gtsmodel.FileMeta{
+			Focus: ExtractFocus(i),
+		},
+		Processing: gtsmodel.ProcessingStatusReceived,
 	}, nil
 }
 
@@ -708,6 +717,50 @@ func ExtractBlurhash(i WithBlurhash) string {
 	return blurhashProp.Get()
 }
 
+// ExtractFocus parses a gtsmodel.Focus from the given Attachmentable's
+// `focalPoint` property, if Attachmentable can have `focalPoint`, and
+// `focalPoint` is set to a valid pair of floats. Otherwise, returns a
+// zero gtsmodel.Focus (ie., focus in the centre of the image).
+func ExtractFocus(attachmentable Attachmentable) gtsmodel.Focus {
+	focus := gtsmodel.Focus{}
+
+	withFocalPoint, ok := attachmentable.(WithFocalPoint)
+	if !ok {
+		return focus
+	}
+
+	focalPointProp := withFocalPoint.GetTootFocalPoint()
+	if focalPointProp == nil || focalPointProp.Len() != 2 {
+		return focus
+	}
+
+	xProp := focalPointProp.At(0)
+	if !xProp.IsXMLSchemaFloat() {
+		return focus
+	}
+
+	yProp := focalPointProp.At(1)
+	if !yProp.IsXMLSchemaFloat() {
+		return focus
+	}
+
+	x := xProp.Get()
+	if x < -1 || x > 1 {
+		return focus
+	}
+
+	y := yProp.Get()
+	if y < -1 || y > 1 {
+		return focus
+	}
+
+	// Looks good.
+	focus.X = float32(x)
+	focus.Y = float32(y)
+
+	return focus
+}
+
 // ExtractHashtags extracts a slice of minimal gtsmodel.Tags
 // from a WithTag. If an entry in the WithTag is not a hashtag,
 // or has a name that cannot be normalized, it will be ignored.

internal/ap/extractfocus_test.go

@@ -0,0 +1,125 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package ap_test
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"testing"
+
+	"code.superseriousbusiness.org/activity/streams"
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/ap"
+)
+
+type ExtractFocusTestSuite struct {
+	APTestSuite
+}
+
+func (suite *ExtractFocusTestSuite) TestExtractFocus() {
+	ctx := context.Background()
+
+	type test struct {
+		data    string
+		expectX float32
+		expectY float32
+	}
+
+	for _, test := range []test{
+		{
+			// Fine.
+			data:    "-0.5, 0.5",
+			expectX: -0.5,
+			expectY: 0.5,
+		},
+		{
+			// Also fine.
+			data:    "1, 1",
+			expectX: 1,
+			expectY: 1,
+		},
+		{
+			// Out of range.
+			data:    "1.5, 1",
+			expectX: 0,
+			expectY: 0,
+		},
+		{
+			// Too many points.
+			data:    "1, 1, 0",
+			expectX: 0,
+			expectY: 0,
+		},
+		{
+			// Not enough points.
+			data:    "1",
+			expectX: 0,
+			expectY: 0,
+		},
+	} {
+		// Wrap provided test.data
+		// in a minimal Attachmentable.
+		const fmts = `{
+  "@context": [
+    "https://www.w3.org/ns/activitystreams",
+    {
+      "focalPoint": {
+        "@container": "@list",
+        "@id": "toot:focalPoint"
+      },
+      "toot": "http://joinmastodon.org/ns#"
+    }
+  ],
+  "focalPoint": [ %s ],
+  "type": "Image"
+}`
+
+		// Unmarshal test data.
+		data := fmt.Sprintf(fmts, test.data)
+		m := make(map[string]any)
+		if err := json.Unmarshal([]byte(data), &m); err != nil {
+			suite.FailNow(err.Error())
+		}
+
+		// Convert to type.
+		t, err := streams.ToType(ctx, m)
+		if err != nil {
+			suite.FailNow(err.Error())
+		}
+
+		// Convert to attachmentable.
+		attachmentable, ok := t.(ap.Attachmentable)
+		if !ok {
+			suite.FailNow("", "%T was not Attachmentable", t)
+		}
+
+		// Check extracted focus.
+		focus := ap.ExtractFocus(attachmentable)
+		if focus.X != test.expectX || focus.Y != test.expectY {
+			suite.Fail("",
+				"expected x=%.2f y=%.2f got x=%.2f y=%.2f",
+				test.expectX, test.expectY, focus.X, focus.Y,
+			)
+		}
+	}
+}
+
+func TestExtractFocusTestSuite(t *testing.T) {
+	suite.Run(t, new(ExtractFocusTestSuite))
+}

internal/ap/interfaces.go

@@ -165,6 +165,29 @@ func ToApprovable(t vocab.Type) (Approvable, bool) {
 	return approvable, true
 }
 
+// IsAttachmentable returns whether AS vocab type name
+// is something that can be cast to Attachmentable.
+func IsAttachmentable(typeName string) bool {
+	switch typeName {
+	case ObjectAudio,
+		ObjectDocument,
+		ObjectImage,
+		ObjectVideo:
+		return true
+	default:
+		return false
+	}
+}
+
+// ToAttachmentable safely tries to cast vocab.Type as Attachmentable.
+func ToAttachmentable(t vocab.Type) (Attachmentable, bool) {
+	attachmentable, ok := t.(Attachmentable)
+	if !ok || !IsAttachmentable(t.GetTypeName()) {
+		return nil, false
+	}
+	return attachmentable, true
+}
+
 // Activityable represents the minimum activitypub interface for representing an 'activity'.
 // (see: IsActivityable() for types implementing this, though you MUST make sure to check
 // the typeName as this bare interface may be implementable by non-Activityable types).
@@ -628,9 +651,11 @@ type WithBlurhash interface {
 	SetTootBlurhash(vocab.TootBlurhashProperty)
 }
 
-// type withFocalPoint interface {
-// 	// TODO
-// }
+// WithFocalPoint represents an object with TootFocalPointProperty.
+type WithFocalPoint interface {
+	GetTootFocalPoint() vocab.TootFocalPointProperty
+	SetTootFocalPoint(vocab.TootFocalPointProperty)
+}
 
 // WithHref represents an activity with ActivityStreamsHrefProperty
 type WithHref interface {

internal/ap/properties.go

@@ -560,6 +560,70 @@ func SetApprovedBy(with WithApprovedBy, approvedBy *url.URL) {
 	abProp.Set(approvedBy)
 }
 
+// GetMediaType returns the string contained in
+// the MediaType property of 'with', if set.
+func GetMediaType(with WithMediaType) string {
+	mtProp := with.GetActivityStreamsMediaType()
+	if mtProp == nil || !mtProp.IsRFCRfc2045() {
+		return ""
+	}
+	return mtProp.Get()
+}
+
+// SetMediaType sets the given string
+// on the MediaType property of 'with'.
+func SetMediaType(with WithMediaType, mediaType string) {
+	mtProp := with.GetActivityStreamsMediaType()
+	if mtProp == nil {
+		mtProp = streams.NewActivityStreamsMediaTypeProperty()
+		with.SetActivityStreamsMediaType(mtProp)
+	}
+	mtProp.Set(mediaType)
+}
+
+// AppendName appends the given name
+// vals to the Name property of 'with'.
+func AppendName(with WithName, name ...string) {
+	if len(name) == 0 {
+		return
+	}
+	nameProp := with.GetActivityStreamsName()
+	if nameProp == nil {
+		nameProp = streams.NewActivityStreamsNameProperty()
+		with.SetActivityStreamsName(nameProp)
+	}
+	for _, name := range name {
+		nameProp.AppendXMLSchemaString(name)
+	}
+}
+
+// AppendSummary appends the given summary
+// vals to the Summary property of 'with'.
+func AppendSummary(with WithSummary, summary ...string) {
+	if len(summary) == 0 {
+		return
+	}
+	summaryProp := with.GetActivityStreamsSummary()
+	if summaryProp == nil {
+		summaryProp = streams.NewActivityStreamsSummaryProperty()
+		with.SetActivityStreamsSummary(summaryProp)
+	}
+	for _, summary := range summary {
+		summaryProp.AppendXMLSchemaString(summary)
+	}
+}
+
+// SetBlurhash sets the given string
+// on the Blurhash property of 'with'.
+func SetBlurhash(with WithBlurhash, mediaType string) {
+	bProp := with.GetTootBlurhash()
+	if bProp == nil {
+		bProp = streams.NewTootBlurhashProperty()
+		with.SetTootBlurhash(bProp)
+	}
+	bProp.Set(mediaType)
+}
+
 // extractIRIs extracts just the AP IRIs from an iterable
 // property that may contain types (with IRIs) or just IRIs.
 //

internal/api/client/statuses/statusboost_test.go

@@ -193,8 +193,8 @@ func (suite *StatusBoostTestSuite) TestPostBoost() {
         "id": "01F8MH6NEM8D7527KZAECTCR76",
         "meta": {
           "focus": {
-            "x": 0,
-            "y": 0
+            "x": -0.5,
+            "y": 0.5
           },
           "original": {
             "aspect": 1.9047619,

internal/federation/dereferencing/status.go

@@ -950,6 +950,8 @@ func (d *Dereferencer) fetchStatusAttachments(
 				RemoteURL:   &placeholder.RemoteURL,
 				Description: &placeholder.Description,
 				Blurhash:    &placeholder.Blurhash,
+				FocusX:      &placeholder.FileMeta.Focus.X,
+				FocusY:      &placeholder.FileMeta.Focus.Y,
 			},
 		)
 		if err != nil {

internal/filter/spam/statusable.go

@@ -142,7 +142,14 @@ func (f *Filter) StatusableOK(
 	}
 
 	// HEURISTIC 6: Are there any media attachments?
-	attachments, _ := ap.ExtractAttachments(statusable)
+	attachments, err := ap.ExtractAttachments(statusable)
+	if err != nil {
+		log.Warnf(ctx,
+			"error(s) extracting attachments for %s: %v",
+			ap.GetJSONLDId(statusable), err,
+		)
+	}
+
 	hasAttachments := len(attachments) != 0
 	if hasAttachments {
 		err := errors.New("status has attachment(s)")

internal/router/template.go

@@ -136,6 +136,7 @@ func LoadTemplates(engine *gin.Engine) error {
 var funcMap = template.FuncMap{
 	"add":              add,
 	"acctInstance":     acctInstance,
+	"objectPosition":   objectPosition,
 	"demojify":         demojify,
 	"deref":            deref,
 	"emojify":          emojify,
@@ -365,3 +366,12 @@ func deref(i any) any {
 
 	return vOf.Elem()
 }
+
+// objectPosition formats the given focus coordinates to a
+// string suitable for use as a css object-position value.
+func objectPosition(focusX float32, focusY float32) string {
+	const fmts = "%.2f"
+	xPos := ((focusX / 2) + .5) * 100
+	yPos := ((focusY / -2) + .5) * 100
+	return fmt.Sprintf(fmts, xPos) + "%" + " " + fmt.Sprintf(fmts, yPos) + "%"
+}

internal/typeutils/internaltoas.go

@@ -678,22 +678,9 @@ func (c *Converter) StatusToAS(ctx context.Context, s *gtsmodel.Status) (ap.Stat
 	status.SetActivityStreamsContent(contentProp)
 
 	// attachments
-	attachmentProp := streams.NewActivityStreamsAttachmentProperty()
-	attachments := s.Attachments
-	if len(s.AttachmentIDs) != len(attachments) {
-		attachments, err = c.state.DB.GetAttachmentsByIDs(ctx, s.AttachmentIDs)
-		if err != nil {
-			return nil, gtserror.Newf("error getting attachments from database: %w", err)
-		}
+	if err := c.attachAttachments(ctx, s, status); err != nil {
+		return nil, gtserror.Newf("error attaching attachments: %w", err)
 	}
-	for _, a := range attachments {
-		doc, err := c.AttachmentToAS(ctx, a)
-		if err != nil {
-			return nil, gtserror.Newf("error converting attachment: %w", err)
-		}
-		attachmentProp.AppendActivityStreamsDocument(doc)
-	}
-	status.SetActivityStreamsAttachment(attachmentProp)
 
 	// replies
 	repliesCollection, err := c.StatusToASRepliesCollection(ctx, s, false)
@@ -1130,39 +1117,94 @@ func (c *Converter) EmojiToAS(ctx context.Context, e *gtsmodel.Emoji) (vocab.Too
 	return emoji, nil
 }
 
-// AttachmentToAS converts a gts model media attachment into an activity streams Attachment, suitable for federation
-func (c *Converter) AttachmentToAS(ctx context.Context, a *gtsmodel.MediaAttachment) (vocab.ActivityStreamsDocument, error) {
-	// type -- Document
-	doc := streams.NewActivityStreamsDocument()
-
-	// mediaType aka mime content type
-	mediaTypeProp := streams.NewActivityStreamsMediaTypeProperty()
-	mediaTypeProp.Set(a.File.ContentType)
-	doc.SetActivityStreamsMediaType(mediaTypeProp)
-
-	// url -- for the original image not the thumbnail
-	urlProp := streams.NewActivityStreamsUrlProperty()
-	imageURL, err := url.Parse(a.URL)
-	if err != nil {
-		return nil, fmt.Errorf("AttachmentToAS: error parsing uri %s: %s", a.URL, err)
+// attachAttachments converts the attachments on the given status
+// into Attachmentables, and appends them to the given Statusable.
+func (c *Converter) attachAttachments(
+	ctx context.Context,
+	s *gtsmodel.Status,
+	statusable ap.Statusable,
+) error {
+	// Ensure status attachments populated.
+	if len(s.AttachmentIDs) != len(s.Attachments) {
+		var err error
+		s.Attachments, err = c.state.DB.GetAttachmentsByIDs(ctx, s.AttachmentIDs)
+		if err != nil && !errors.Is(err, db.ErrNoEntries) {
+			return gtserror.Newf("db error getting attachments: %w", err)
+		}
 	}
-	urlProp.AppendIRI(imageURL)
-	doc.SetActivityStreamsUrl(urlProp)
 
-	// name -- aka image description
-	nameProp := streams.NewActivityStreamsNameProperty()
-	nameProp.AppendXMLSchemaString(a.Description)
-	doc.SetActivityStreamsName(nameProp)
+	// Prepare attachment property.
+	attachmentProp := streams.NewActivityStreamsAttachmentProperty()
+	defer statusable.SetActivityStreamsAttachment(attachmentProp)
 
-	// blurhash
-	blurProp := streams.NewTootBlurhashProperty()
-	blurProp.Set(a.Blurhash)
-	doc.SetTootBlurhash(blurProp)
+	for _, a := range s.Attachments {
 
-	// focalpoint
-	// TODO
+		// Use appropriate vocab.Type and
+		// append function for this attachment.
+		var (
+			attachmentable ap.Attachmentable
+			append         func()
+		)
+		switch a.Type {
 
-	return doc, nil
+		// png, gif, webp, jpeg, etc.
+		case gtsmodel.FileTypeImage:
+			t := streams.NewActivityStreamsImage()
+			attachmentable = t
+			append = func() { attachmentProp.AppendActivityStreamsImage(t) }
+
+		// mp4, m4a, wmv, webm, etc.
+		case gtsmodel.FileTypeVideo, gtsmodel.FileTypeGifv:
+			t := streams.NewActivityStreamsVideo()
+			attachmentable = t
+			append = func() { attachmentProp.AppendActivityStreamsVideo(t) }
+
+		// mp3, flac, ogg, wma, etc.
+		case gtsmodel.FileTypeAudio:
+			t := streams.NewActivityStreamsAudio()
+			attachmentable = t
+			append = func() { attachmentProp.AppendActivityStreamsAudio(t) }
+
+		// Not sure, fall back to Document.
+		default:
+			t := streams.NewActivityStreamsDocument()
+			attachmentable = t
+			append = func() { attachmentProp.AppendActivityStreamsDocument(t) }
+		}
+
+		// `mediaType` ie., mime content type.
+		ap.SetMediaType(attachmentable, a.File.ContentType)
+
+		// URL of the media file.
+		imageURL, err := url.Parse(a.URL)
+		if err != nil {
+			return gtserror.Newf("error parsing attachment url: %w", err)
+		}
+		ap.AppendURL(attachmentable, imageURL)
+
+		// `summary` ie., media description / alt text
+		ap.AppendSummary(attachmentable, a.Description)
+
+		// `blurhash`
+		ap.SetBlurhash(attachmentable, a.Blurhash)
+
+		// Set `focalPoint` only if necessary.
+		if a.FileMeta.Focus.X != 0 && a.FileMeta.Focus.Y != 0 {
+			if withFocalPoint, ok := attachmentable.(ap.WithFocalPoint); ok {
+				focalPointProp := streams.NewTootFocalPointProperty()
+				focalPointProp.AppendXMLSchemaFloat(float64(a.FileMeta.Focus.X))
+				focalPointProp.AppendXMLSchemaFloat(float64(a.FileMeta.Focus.Y))
+				withFocalPoint.SetTootFocalPoint(focalPointProp)
+			}
+		}
+
+		// Done, append
+		// to Statusable.
+		append()
+	}
+
+	statusable.SetActivityStreamsAttachment(attachmentProp)
+	return nil
 }
 
 // FaveToAS converts a gts model status fave into an activityStreams LIKE, suitable for federation.

internal/typeutils/internaltoas_test.go

@@ -597,6 +597,10 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASWithIDs() {
       "Emoji": "toot:Emoji",
       "Hashtag": "as:Hashtag",
       "blurhash": "toot:blurhash",
+      "focalPoint": {
+        "@container": "@list",
+        "@id": "toot:focalPoint"
+      },
       "sensitive": "as:sensitive",
       "toot": "http://joinmastodon.org/ns#"
     }
@@ -604,9 +608,13 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASWithIDs() {
   "attachment": [
     {
       "blurhash": "LIIE|gRj00WB-;j[t7j[4nWBj[Rj",
+      "focalPoint": [
+        -0.5,
+        0.5
+      ],
       "mediaType": "image/jpeg",
-      "name": "Black and white image of some 50's style text saying: Welcome On Board",
-      "type": "Document",
+      "summary": "Black and white image of some 50's style text saying: Welcome On Board",
+      "type": "Image",
       "url": "http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpg"
     }
   ],
@@ -697,6 +705,10 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASFromDB() {
       "Emoji": "toot:Emoji",
       "Hashtag": "as:Hashtag",
       "blurhash": "toot:blurhash",
+      "focalPoint": {
+        "@container": "@list",
+        "@id": "toot:focalPoint"
+      },
       "sensitive": "as:sensitive",
       "toot": "http://joinmastodon.org/ns#"
     }
@@ -704,9 +716,13 @@ func (suite *InternalToASTestSuite) TestStatusWithTagsToASFromDB() {
   "attachment": [
     {
       "blurhash": "LIIE|gRj00WB-;j[t7j[4nWBj[Rj",
+      "focalPoint": [
+        -0.5,
+        0.5
+      ],
       "mediaType": "image/jpeg",
-      "name": "Black and white image of some 50's style text saying: Welcome On Board",
-      "type": "Document",
+      "summary": "Black and white image of some 50's style text saying: Welcome On Board",
+      "type": "Image",
       "url": "http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpg"
     }
   ],

internal/typeutils/internaltofrontend_test.go

@@ -553,8 +553,8 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontend() {
           "aspect": 1.9104477
         },
         "focus": {
-          "x": 0,
-          "y": 0
+          "x": -0.5,
+          "y": 0.5
         }
       },
       "description": "Black and white image of some 50's style text saying: Welcome On Board",
@@ -701,8 +701,8 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendHTMLContentWarning
           "aspect": 1.9104477
         },
         "focus": {
-          "x": 0,
-          "y": 0
+          "x": -0.5,
+          "y": 0.5
         }
       },
       "description": "Black and white image of some 50's style text saying: Welcome On Board",
@@ -851,8 +851,8 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendApplicationDeleted
           "aspect": 1.9104477
         },
         "focus": {
-          "x": 0,
-          "y": 0
+          "x": -0.5,
+          "y": 0.5
         }
       },
       "description": "Black and white image of some 50's style text saying: Welcome On Board",
@@ -1032,8 +1032,8 @@ func (suite *InternalToFrontendTestSuite) TestWarnFilteredStatusToFrontend() {
           "aspect": 1.9104477
         },
         "focus": {
-          "x": 0,
-          "y": 0
+          "x": -0.5,
+          "y": 0.5
         }
       },
       "description": "Black and white image of some 50's style text saying: Welcome On Board",
@@ -1218,8 +1218,8 @@ func (suite *InternalToFrontendTestSuite) TestWarnFilteredBoostToFrontend() {
             "aspect": 1.9104477
           },
           "focus": {
-            "x": 0,
-            "y": 0
+            "x": -0.5,
+            "y": 0.5
           }
         },
         "description": "Black and white image of some 50's style text saying: Welcome On Board",
@@ -1955,8 +1955,8 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontendUnknownLanguage()
           "aspect": 1.9104477
         },
         "focus": {
-          "x": 0,
-          "y": 0
+          "x": -0.5,
+          "y": 0.5
         }
       },
       "description": "Black and white image of some 50's style text saying: Welcome On Board",