diff --git a/src/lib/libraries/decks/en-steps.js b/src/lib/libraries/decks/en-steps.js
index e3c4aeb4ced94f4e2f07afcf79aa2f0caf1de269..4e9e9c0275d77cb5856ba8f820a0a0401e8a413e 100644
--- a/src/lib/libraries/decks/en-steps.js
+++ b/src/lib/libraries/decks/en-steps.js
@@ -3,86 +3,86 @@ import introMove from './steps/intro-move.en.gif';
 import introSayHello from './steps/intro-say-hello.en.gif';
 
 // Text to Speech
-import speechAddExtension from './steps/talking-1-add-extension.en.gif';
-import speechSaySomething from './steps/speech-say-something.en.gif';
-import speechSetVoice from './steps/speech-set-voice.en.gif';
-import speechMoveAround from './steps/speech-move-around.en.gif';
-import speechAddBackdrop from './steps/speech-add-backdrop.en.gif';
-import speechAddSprite from './steps/speech-add-sprite.en.gif';
-import speechSong from './steps/speech-song.en.gif';
-import speechChangeColor from './steps/speech-change-color.en.gif';
-import speechSpin from './steps/speech-spin.en.gif';
-import speechGrowShrink from './steps/speech-grow-shrink.en.gif';
+import speechAddExtension from './steps/speech-add-extension.en.gif';
+import speechSaySomething from './steps/speech-say-something.en.png';
+import speechSetVoice from './steps/speech-set-voice.en.png';
+import speechMoveAround from './steps/speech-move-around.en.png';
+import speechAddBackdrop from './steps/speech-add-backdrop.gif';
+import speechAddSprite from './steps/speech-add-sprite.gif';
+import speechSong from './steps/speech-song.en.png';
+import speechChangeColor from './steps/speech-change-color.en.png';
+import speechSpin from './steps/speech-spin.en.png';
+import speechGrowShrink from './steps/speech-grow-shrink.en.png';
 
 // Cartoon Network
 import cnShowCharacter from './steps/cn-show-character.gif';
-import cnSay from './steps/cn-say.en.gif';
-import cnGlide from './steps/cn-glide.en.gif';
+import cnSay from './steps/cn-say.en.png';
+import cnGlide from './steps/cn-glide.en.png';
 import cnPickSprite from './steps/cn-pick-sprite.gif';
-import cnCollect from './steps/cn-collect.en.gif';
+import cnCollect from './steps/cn-collect.en.png';
 import cnVariable from './steps/add-variable.en.gif';
-import cnScore from './steps/cn-score.en.gif';
-import cnBackdrop from './steps/cn-backdrop.en.gif';
+import cnScore from './steps/cn-score.en.png';
+import cnBackdrop from './steps/cn-backdrop.en.png';
 
 // Add sprite
-import addSprite from './steps/add-sprite.en.gif';
+import addSprite from './steps/add-sprite.gif';
 
 // Animate a name
-import namePickLetter from './steps/name-pick-letter.en.gif';
-import namePlaySound from './steps/name-play-sound.en.gif';
-import namePickLetter2 from './steps/name-pick-letter2.en.gif';
-import nameChangeColor from './steps/name-change-color.en.gif';
-import nameSpin from './steps/name-spin.en.gif';
-import nameGrow from './steps/name-grow.en.gif';
-
-// Make-Music
-import musicPickInstrument from './steps/music-pick-instrument.en.gif';
-import musicPlaySound from './steps/music-play-sound.en.gif';
-import musicMakeSong from './steps/music-make-song.en.gif';
-import musicMakeBeat from './steps/music-make-beat.en.gif';
-import musicMakeBeatbox from './steps/music-make-beatbox.en.gif';
+import namePickLetter from './steps/name-pick-letter.gif';
+import namePlaySound from './steps/name-play-sound.en.png';
+import namePickLetter2 from './steps/name-pick-letter2.gif';
+import nameChangeColor from './steps/name-change-color.en.png';
+import nameSpin from './steps/name-spin.en.png';
+import nameGrow from './steps/name-grow.en.png';
+
+// Make Music
+import musicPickInstrument from './steps/music-pick-instrument.gif';
+import musicPlaySound from './steps/music-play-sound.en.png';
+import musicMakeSong from './steps/music-make-song.en.png';
+import musicMakeBeat from './steps/music-make-beat.en.png';
+import musicMakeBeatbox from './steps/music-make-beatbox.en.png';
 
 // Chase-Game
 import chaseGameAddBackdrop from './steps/chase-game-add-backdrop.gif';
-import chaseGameAddSprite1 from './steps/chase-game-add-sprite1.en.gif';
-import chaseGameRightLeft from './steps/chase-game-right-left.en.gif';
-import chaseGameUpDown from './steps/chase-game-up-down.en.gif';
-import chaseGameAddSprite2 from './steps/chase-game-add-sprite2.en.gif';
-import chaseGameMoveRandomly from './steps/chase-game-move-randomly.en.gif';
-import chaseGamePlaySound from './steps/chase-game-play-sound.en.gif';
+import chaseGameAddSprite1 from './steps/chase-game-add-sprite1.gif';
+import chaseGameRightLeft from './steps/chase-game-right-left.en.png';
+import chaseGameUpDown from './steps/chase-game-up-down.en.png';
+import chaseGameAddSprite2 from './steps/chase-game-add-sprite2.gif';
+import chaseGameMoveRandomly from './steps/chase-game-move-randomly.en.png';
+import chaseGamePlaySound from './steps/chase-game-play-sound.en.png';
 import chaseGameAddVariable from './steps/add-variable.en.gif';
-import chaseGameChangeScore from './steps/chase-game-change-score.en.gif';
+import chaseGameChangeScore from './steps/chase-game-change-score.en.png';
 
 // Clicker-Game (Pop Game)
-import popGamePickSprite from './steps/pop-game-pick-sprite.en.gif';
-import popGamePlaySound from './steps/pop-game-play-sound.en.gif';
+import popGamePickSprite from './steps/pop-game-pick-sprite.gif';
+import popGamePlaySound from './steps/pop-game-play-sound.en.png';
 import popGameAddScore from './steps/add-variable.en.gif';
-import popGameChangeScore from './steps/pop-game-change-score.en.gif';
-import popGameRandomPosition from './steps/pop-game-random-position.en.gif';
-import popGameChangeColor from './steps/pop-game-change-color.en.gif';
-import popGameResetScore from './steps/pop-game-reset-score.en.gif';
+import popGameChangeScore from './steps/pop-game-change-score.en.png';
+import popGameRandomPosition from './steps/pop-game-random-position.en.png';
+import popGameChangeColor from './steps/pop-game-change-color.en.png';
+import popGameResetScore from './steps/pop-game-reset-score.en.png';
 
 // Animate A Character
-import animateCharPickBackdrop from './steps/animate-char-pick-backdrop.en.gif';
-import animateCharPickSprite from './steps/animate-char-pick-sprite.en.gif';
-import animateCharSaySomething from './steps/animate-char-say-something.en.gif';
-import animateCharAddSound from './steps/animate-char-add-sound.en.gif';
-import animateCharTalk from './steps/animate-char-talk.en.gif';
-import animateCharMove from './steps/animate-char-move.en.gif';
-import animateCharJump from './steps/animate-char-jump.en.gif';
-import animateCharChangeColor from './steps/animate-char-change-color.en.gif';
+import animateCharPickBackdrop from './steps/animate-char-pick-backdrop.gif';
+import animateCharPickSprite from './steps/animate-char-pick-sprite.gif';
+import animateCharSaySomething from './steps/animate-char-say-something.en.png';
+import animateCharAddSound from './steps/animate-char-add-sound.en.png';
+import animateCharTalk from './steps/animate-char-talk.en.png';
+import animateCharMove from './steps/animate-char-move.en.png';
+import animateCharJump from './steps/animate-char-jump.en.png';
+import animateCharChangeColor from './steps/animate-char-change-color.en.png';
 
 // Tell A Story
 import storyPickBackdrop from './steps/story-pick-backdrop.gif';
 import storyPickSprite from './steps/story-pick-sprite.gif';
-import storySaySomething from './steps/story-say-something.en.gif';
+import storySaySomething from './steps/story-say-something.en.png';
 import storyPickSprite2 from './steps/story-pick-sprite2.gif';
 import storyFlip from './steps/story-flip.en.gif';
-import storyConversation from './steps/story-conversation.en.gif';
+import storyConversation from './steps/story-conversation.en.png';
 import storyPickBackdrop2 from './steps/story-pick-backdrop2.gif';
-import storySwitchBackdrop from './steps/story-switch-backdrop.en.gif';
-import storyHideCharacter from './steps/story-hide-character.en.gif';
-import storyShowCharacter from './steps/story-show-character.en.gif';
+import storySwitchBackdrop from './steps/story-switch-backdrop.en.png';
+import storyHideCharacter from './steps/story-hide-character.en.png';
+import storyShowCharacter from './steps/story-show-character.en.png';
 
 // Video Sensing
 import videoAddExtension from './steps/video-add-extension.en.gif';
@@ -91,32 +91,32 @@ import videoAnimate from './steps/video-animate.en.png';
 import videoPop from './steps/video-pop.en.png';
 
 // Make it Fly
-import flyChooseBackdrop from './steps/fly-choose-backdrop.en.gif';
-import flyChooseCharacter from './steps/fly-choose-character.en.gif';
-import flySaySomething from './steps/fly-say-something.en.gif';
-import flyMoveArrows from './steps/fly-make-interactive.en.gif';
-import flyChooseObject from './steps/fly-object-to-collect.en.gif';
-import flyFlyingObject from './steps/fly-flying-heart.en.gif';
-import flySelectFlyingSprite from './steps/fly-select-flyer.en.jpg';
+import flyChooseBackdrop from './steps/fly-choose-backdrop.gif';
+import flyChooseCharacter from './steps/fly-choose-character.png';
+import flySaySomething from './steps/fly-say-something.en.png';
+import flyMoveArrows from './steps/fly-make-interactive.en.png';
+import flyChooseObject from './steps/fly-object-to-collect.png';
+import flyFlyingObject from './steps/fly-flying-heart.en.png';
+import flySelectFlyingSprite from './steps/fly-select-flyer.png';
 import flyAddScore from './steps/add-variable.en.gif';
-import flyKeepScore from './steps/fly-keep-score.en.gif';
-import flyAddScenery from './steps/fly-choose-scenery.en.gif';
-import flyMoveScenery from './steps/fly-move-scenery.en.gif';
-import flySwitchLooks from './steps/fly-switch-costume.en.gif';
+import flyKeepScore from './steps/fly-keep-score.en.png';
+import flyAddScenery from './steps/fly-choose-scenery.gif';
+import flyMoveScenery from './steps/fly-move-scenery.en.png';
+import flySwitchLooks from './steps/fly-switch-costume.en.png';
 
 // Pong
-import pongAddBackdrop from './steps/pong-add-backdrop.en.png';
+import pongAddBackdrop from './steps/pong-add-backdrop.png';
 import pongAddBallSprite from './steps/pong-add-ball-sprite.png';
-import pongBounceAround from './steps/pong-bounce-around.en.gif';
-import pongAddPaddle from './steps/pong-add-a-paddle.en.gif';
-import pongMoveThePaddle from './steps/pong-move-the-paddle.en.gif';
+import pongBounceAround from './steps/pong-bounce-around.en.png';
+import pongAddPaddle from './steps/pong-add-a-paddle.gif';
+import pongMoveThePaddle from './steps/pong-move-the-paddle.en.png';
 import pongSelectBallSprite from './steps/pong-select-ball.png';
 import pongAddMoreCodeToBall from './steps/pong-add-code-to-ball.en.png';
 import pongAddAScore from './steps/add-variable.en.gif';
 import pongChooseScoreFromMenu from './steps/pong-choose-score.en.png';
 import pongInsertChangeScoreBlock from './steps/pong-insert-change-score.en.png';
 import pongResetScore from './steps/pong-reset-score.en.png';
-import pongAddLineSprite from './steps/pong-add-line.en.gif';
+import pongAddLineSprite from './steps/pong-add-line.gif';
 import pongGameOver from './steps/pong-game-over.en.png';
 
 // Imagine a World
@@ -132,14 +132,14 @@ import imagineChangeCostumes from './steps/imagine-change-costumes.en.png';
 import imagineGlideToPoint from './steps/imagine-glide-to-point.en.png';
 import imagineGrowShrink from './steps/imagine-grow-shrink.en.png';
 import imagineChooseAnotherBackdrop from './steps/imagine-choose-another-backdrop.png';
-import imagineSwitchBackdrops from './steps/imagine-switch-backdrops.en.gif';
+import imagineSwitchBackdrops from './steps/imagine-switch-backdrops.en.png';
 import imagineRecordASound from './steps/imagine-record-a-sound.en.gif';
 import imagineChooseSound from './steps/imagine-choose-sound.en.png';
 
 // Add a Backdrop
-import addBackdrop from './steps/add-backdrop.en.png';
+import addBackdrop from './steps/add-backdrop.png';
 
-// Add Effectsf
+// Add Effects
 import addEffects from './steps/add-effects.en.png';
 
 // Hide and Show
@@ -172,31 +172,31 @@ import glideAroundPoint from './steps/glide-around-point.en.png';
 
 // Code a Cartoon
 import codeCartoonSaySomething from './steps/code-cartoon-01-say-something.en.png';
-import codeCartoonAnimate from './steps/code-cartoon-02-animate.en.gif';
+import codeCartoonAnimate from './steps/code-cartoon-02-animate.en.png';
 import codeCartoonSelectDifferentCharacter from './steps/code-cartoon-03-select-different-character.png';
-import codeCartoonUseMinusSign from './steps/code-cartoon-04-use-minus-sign.en.gif';
-import codeCartoonGrowShrink from './steps/code-cartoon-05-grow-shrink.en.gif';
+import codeCartoonUseMinusSign from './steps/code-cartoon-04-use-minus-sign.en.png';
+import codeCartoonGrowShrink from './steps/code-cartoon-05-grow-shrink.en.png';
 import codeCartoonSelectDifferentCharacter2 from './steps/code-cartoon-06-select-another-different-character.png';
-import codeCartoonJump from './steps/code-cartoon-07-jump.en.gif';
-import codeCartoonChangeScenes from './steps/code-cartoon-08-change-scenes.en.gif';
-import codeCartoonGlideAround from './steps/code-cartoon-09-glide-around.en.gif';
-import codeCartoonChangeCostumes from './steps/code-cartoon-10-change-costumes.en.gif';
-import codeCartoonChooseMoreCharacters from './steps/code-cartoon-11-choose-more-characters.en.jpg';
+import codeCartoonJump from './steps/code-cartoon-07-jump.en.png';
+import codeCartoonChangeScenes from './steps/code-cartoon-08-change-scenes.en.png';
+import codeCartoonGlideAround from './steps/code-cartoon-09-glide-around.en.png';
+import codeCartoonChangeCostumes from './steps/code-cartoon-10-change-costumes.en.png';
+import codeCartoonChooseMoreCharacters from './steps/code-cartoon-11-choose-more-characters.png';
 
 // Talking Tales
-import talesAddExtension from './steps/talking-1-add-extension.en.gif';
-import talesChooseSprite from './steps/talking-2-choose-sprite.en.png';
-import talesSaySomething from './steps/talking-3-say-something.en.gif';
-import talesChooseBackdrop from './steps/talking-4-choose-backdrop.en.png';
-import talesSwitchBackdrop from './steps/talking-5-switch-backdrop.en.gif';
-import talesChooseAnotherSprite from './steps/talking-6-choose-another-sprite.en.png';
-import talesMoveAround from './steps/talking-7-move-around.en.gif';
-import talesChooseAnotherBackdrop from './steps/talking-8-choose-another-backdrop.en.png';
-import talesAnimateTalking from './steps/talking-9-animate.en.gif';
-import talesChooseThirdBackdrop from './steps/talking-10-choose-third-backdrop.en.png';
+import talesAddExtension from './steps/speech-add-extension.en.gif';
+import talesChooseSprite from './steps/talking-2-choose-sprite.png';
+import talesSaySomething from './steps/talking-3-say-something.en.png';
+import talesChooseBackdrop from './steps/talking-4-choose-backdrop.png';
+import talesSwitchBackdrop from './steps/talking-5-switch-backdrop.en.png';
+import talesChooseAnotherSprite from './steps/talking-6-choose-another-sprite.png';
+import talesMoveAround from './steps/talking-7-move-around.en.png';
+import talesChooseAnotherBackdrop from './steps/talking-8-choose-another-backdrop.png';
+import talesAnimateTalking from './steps/talking-9-animate.en.png';
+import talesChooseThirdBackdrop from './steps/talking-10-choose-third-backdrop.png';
 import talesChooseSound from './steps/talking-11-choose-sound.en.gif';
-import talesDanceMoves from './steps/talking-12-dance-moves.en.gif';
-import talesAskAnswer from './steps/talking-13-ask-and-answer.en.gif';
+import talesDanceMoves from './steps/talking-12-dance-moves.en.png';
+import talesAskAnswer from './steps/talking-13-ask-and-answer.en.png';
 
 const enImages = {
     // Intro
diff --git a/src/lib/libraries/decks/steps/add-backdrop.en.png b/src/lib/libraries/decks/steps/add-backdrop.en.png
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