diff --git a/editor/blocks/es.json b/editor/blocks/es.json
index b434433d..ec9fc32b 100644
--- a/editor/blocks/es.json
+++ b/editor/blocks/es.json
@@ -4,9 +4,9 @@
     "CONTROL_IF": "si %1 entonces",
     "CONTROL_ELSE": "si no",
     "CONTROL_STOP": "detener",
-    "CONTROL_STOP_ALL": "todo",
-    "CONTROL_STOP_THIS": "este programa",
-    "CONTROL_STOP_OTHER": "otros programas en el objeto",
+    "CONTROL_STOP_ALL": "todos",
+    "CONTROL_STOP_THIS": "este script",
+    "CONTROL_STOP_OTHER": "otros scripts en el sprite",
     "CONTROL_WAIT": "esperar %1 segundos",
     "CONTROL_WAITUNTIL": "esperar hasta que %1",
     "CONTROL_REPEATUNTIL": "repetir hasta que %1",
@@ -15,7 +15,7 @@
     "CONTROL_STARTASCLONE": "al comenzar como clon",
     "CONTROL_CREATECLONEOF": "crear clon de %1",
     "CONTROL_CREATECLONEOF_MYSELF": "mí mismo",
-    "CONTROL_DELETETHISCLONE": "eliminar este clon",
+    "CONTROL_DELETETHISCLONE": "borrar este clon",
     "CONTROL_COUNTER": "contador",
     "CONTROL_INCRCOUNTER": "incrementar contador",
     "CONTROL_CLEARCOUNTER": "borrar contador",
@@ -23,7 +23,7 @@
     "DATA_SETVARIABLETO": "dar a %1 el valor %2",
     "DATA_CHANGEVARIABLEBY": "sumar a %1 %2",
     "DATA_SHOWVARIABLE": "mostrar variable %1",
-    "DATA_HIDEVARIABLE": "esconder variable %1",
+    "DATA_HIDEVARIABLE": "ocultar variable %1",
     "DATA_ADDTOLIST": "añadir %1 a %2",
     "DATA_DELETEOFLIST": "eliminar %1 de %2",
     "DATA_INSERTATLIST": "insertar %1 en %2 de %3",
@@ -33,9 +33,9 @@
     "DATA_LISTCONTAINSITEM": "¿%2 está en %1?",
     "DATA_SHOWLIST": "mostrar lista %1",
     "DATA_HIDELIST": "esconder lista %1",
-    "DATA_INDEX_ALL": "todo",
+    "DATA_INDEX_ALL": "todos",
     "DATA_INDEX_LAST": "último",
-    "DATA_INDEX_RANDOM": "aleatorio",
+    "DATA_INDEX_RANDOM": "al azar",
     "EVENT_WHENFLAGCLICKED": "al hacer clic en %1",
     "EVENT_WHENTHISSPRITECLICKED": "al hacer clic en este objeto",
     "EVENT_WHENSTAGECLICKED": "al hacer clic en el escenario",
@@ -62,14 +62,14 @@
     "LOOKS_EFFECT_COLOR": "color",
     "LOOKS_EFFECT_FISHEYE": "ojo de pez",
     "LOOKS_EFFECT_WHIRL": "remolino",
-    "LOOKS_EFFECT_PIXELATE": "pixelar",
+    "LOOKS_EFFECT_PIXELATE": "pixelizar",
     "LOOKS_EFFECT_MOSAIC": "mosaico",
     "LOOKS_EFFECT_BRIGHTNESS": "brillo",
     "LOOKS_EFFECT_GHOST": "desvanecer",
     "LOOKS_CHANGEEFFECTBY": "sumar al efecto %1 %2",
     "LOOKS_SETEFFECTTO": "dar al efecto %1 el valor %2",
-    "LOOKS_CLEARGRAPHICEFFECTS": "borrar efectos gráficos",
-    "LOOKS_CHANGESIZEBY": "sumar al tamaño %1",
+    "LOOKS_CLEARGRAPHICEFFECTS": "quitar efectos gráficos",
+    "LOOKS_CHANGESIZEBY": "cambiar tamaño por %1",
     "LOOKS_SETSIZETO": "fijar tamaño al %1 %",
     "LOOKS_SIZE": "tamaño",
     "LOOKS_CHANGESTRETCHBY": "sumar al estiramiento %1",
@@ -77,7 +77,7 @@
     "LOOKS_SWITCHCOSTUMETO": "cambiar disfraz a %1",
     "LOOKS_NEXTCOSTUME": "siguiente disfraz",
     "LOOKS_SWITCHBACKDROPTO": "cambiar fondo a %1",
-    "LOOKS_GOTOFRONTBACK": "situar como capa %1",
+    "LOOKS_GOTOFRONTBACK": "ir a capa %1",
     "LOOKS_GOTOFRONTBACK_FRONT": "delantera",
     "LOOKS_GOTOFRONTBACK_BACK": "trasera",
     "LOOKS_GOFORWARDBACKWARDLAYERS": "ir %2 capas hacia %1",
@@ -109,7 +109,7 @@
     "MOTION_CHANGEYBY": "sumar a y %1",
     "MOTION_SETY": "dar a y el valor %1",
     "MOTION_IFONEDGEBOUNCE": "si toca un borde, rebotar",
-    "MOTION_SETROTATIONSTYLE": "fijar rotación a %1",
+    "MOTION_SETROTATIONSTYLE": "fijar estilo de rotación a %1",
     "MOTION_SETROTATIONSTYLE_LEFTRIGHT": "izquierda-derecha",
     "MOTION_SETROTATIONSTYLE_DONTROTATE": "no rotar",
     "MOTION_SETROTATIONSTYLE_ALLAROUND": "en todas direcciones",
@@ -170,12 +170,12 @@
     "SENSING_ANSWER": "respuesta",
     "SENSING_KEYPRESSED": "¿tecla %1 presionada?",
     "SENSING_MOUSEDOWN": "¿ratón presionado?",
-    "SENSING_MOUSEX": "x del ratón",
-    "SENSING_MOUSEY": "y del ratón",
+    "SENSING_MOUSEX": "posición x del ratón",
+    "SENSING_MOUSEY": "posición y del ratón",
     "SENSING_SETDRAGMODE": "fijar modo de arrastre a %1",
     "SENSING_SETDRAGMODE_DRAGGABLE": "arrastrable",
     "SENSING_SETDRAGMODE_NOTDRAGGABLE": "no arrastrable",
-    "SENSING_LOUDNESS": "intensidad sonora",
+    "SENSING_LOUDNESS": "volumen del sonido",
     "SENSING_LOUD": "¿ruidoso?",
     "SENSING_TIMER": "cronómetro",
     "SENSING_RESETTIMER": "reiniciar cronómetro",
@@ -187,7 +187,7 @@
     "SENSING_OF_COSTUMENAME": "nombre del disfraz",
     "SENSING_OF_SIZE": "tamaño",
     "SENSING_OF_VOLUME": "volumen",
-    "SENSING_OF_BACKDROPNUMBER": "fondo #",
+    "SENSING_OF_BACKDROPNUMBER": "# del fondo",
     "SENSING_OF_BACKDROPNAME": "nombre del fondo",
     "SENSING_CURRENT": "%1 actual",
     "SENSING_CURRENT_YEAR": "año",
@@ -205,10 +205,10 @@
     "SOUND_STOPALLSOUNDS": "detener todos los sonidos",
     "SOUND_SETEFFECTO": "dar al efecto %1 el valor %2",
     "SOUND_CHANGEEFFECTBY": "sumar al efecto %1 %2",
-    "SOUND_CLEAREFFECTS": "borrar efectos de sonido",
+    "SOUND_CLEAREFFECTS": "quitar efectos de sonido",
     "SOUND_EFFECTS_PITCH": "altura",
     "SOUND_EFFECTS_PAN": "balance izquierda/derecha",
-    "SOUND_CHANGEVOLUMEBY": "sumar al volumen %1",
-    "SOUND_SETVOLUMETO": "fijar volumen al %1%",
+    "SOUND_CHANGEVOLUMEBY": "cambiar volumen por %1",
+    "SOUND_SETVOLUMETO": "fijar volumen a %1%",
     "SOUND_VOLUME": "volumen"
 }
\ No newline at end of file
diff --git a/editor/extensions/es.json b/editor/extensions/es.json
old mode 100644
new mode 100755
index adecb47f..eeced1c0
--- a/editor/extensions/es.json
+++ b/editor/extensions/es.json
@@ -4,7 +4,7 @@
         "description": "Sound of two hands clapping together"
     },
     "videoSensing.setVideoTransparency": {
-        "message": "fijar transparencia de video a [TRANSPARENCY]",
+        "message": "fijar transparencia de vídeo a [TRANSPARENCY]",
         "description": "Controls transparency of the video preview layer"
     },
     "pen.setColor": {
@@ -40,7 +40,7 @@
         "description": "label for brightness element in color picker for pen extension"
     },
     "videoSensing.videoToggle": {
-        "message": "poner video a [VIDEO_STATE]",
+        "message": "poner vídeo a [VIDEO_STATE]",
         "description": "Controls display of the video preview layer"
     },
     "pen.setSize": {
@@ -56,7 +56,7 @@
         "description": "Sound of a cello being played with a bow"
     },
     "pen.changeHue": {
-        "message": "sumar al color del lápiz [HUE]",
+        "message": "cambiar al color del lápiz [HUE]",
         "description": "legacy pen blocks - change pen color"
     },
     "music.instrumentChoir": {
@@ -64,7 +64,7 @@
         "description": "Sound of a choir singing"
     },
     "music.drumVibraslap": {
-        "message": "(17) Vibraslap",
+        "message": "(17) Trafaplás",
         "description": "Sound of a Vibraslap being played"
     },
     "pen.stamp": {
@@ -76,7 +76,7 @@
         "description": "Sound of a string instrument (e.g. violin) being plucked"
     },
     "music.instrumentWoodenFlute": {
-        "message": "(13) Flauta dulce",
+        "message": "(13) Flauta de madera",
         "description": "Sound of a wooden flute being played"
     },
     "music.drumSnare": {
@@ -96,7 +96,7 @@
         "description": "Subject for the \"video [ATTRIBUTE] on [SUBJECT]\" block"
     },
     "music.restForBeats": {
-        "message": "silencio de [BEATS] pulsos",
+        "message": "silencio de [BEATS] tiempos",
         "description": "rest (play no sound) for a number of beats"
     },
     "music.drumTriangle": {
@@ -160,7 +160,7 @@
         "description": "Sound of a conga being struck"
     },
     "pen.changeSize": {
-        "message": "sumar al tamaño [SIZE]",
+        "message": "cambiar al tamaño de lápiz [SIZE]",
         "description": "change the diameter of the trail left by a sprite"
     },
     "videoSensing.on": {
@@ -168,7 +168,7 @@
         "description": "Option for the \"turn video [STATE]\" block"
     },
     "music.instrumentSynthPad": {
-        "message": "(21) Sintetizador pad",
+        "message": "(21) Sintetizador melódico",
         "description": "Sound of a \"pad\" synthesizer being played"
     },
     "pen.colorMenu.transparency": {
@@ -184,11 +184,11 @@
         "description": "Sound of a drum stick hitting a hi-hat while closed"
     },
     "pen.changeColorParam": {
-        "message": "sumar a [COLOR_PARAM] [VALUE]",
+        "message": "cambiar a [COLOR_PARAM] de lápiz [VALUE]",
         "description": "change the state of a pen color parameter"
     },
     "videoSensing.whenMotionGreaterThan": {
-        "message": "cuando movimiento de video > [REFERENCE]",
+        "message": "cuando movimiento de vídeo > [REFERENCE]",
         "description": "Event that triggers when the amount of motion is greater than [REFERENCE]"
     },
     "music.drumTambourine": {
@@ -196,7 +196,7 @@
         "description": "Sound of a tambourine being struck"
     },
     "music.playDrumForBeats": {
-        "message": "tocar tambor [DRUM] durante [BEATS] pulsos",
+        "message": "tocar tambor [DRUM] durante [BEATS] tiempos",
         "description": "play drum sample for a number of beats"
     },
     "music.instrumentMarimba": {
@@ -232,7 +232,7 @@
         "description": "stop leaving a trail behind the sprite"
     },
     "music.changeTempo": {
-        "message": "sumar al tempo [TEMPO]",
+        "message": "cambiar tempo por [TEMPO]",
         "description": "change tempo (speed) for notes, drums, and rests played"
     },
     "pen.colorMenu.saturation": {
@@ -248,7 +248,7 @@
         "description": "Sound of a piano"
     },
     "music.drumWoodBlock": {
-        "message": "(10) Caja china",
+        "message": "(10) Bloque de madera",
         "description": "Sound of a wood block being struck"
     },
     "videoSensing.direction": {
@@ -256,7 +256,7 @@
         "description": "Attribute for the \"video [ATTRIBUTE] on [SUBJECT]\" block"
     },
     "music.instrumentSynthLead": {
-        "message": "(20) Sintetizador lead",
+        "message": "(20) Sintetizador melódico",
         "description": "Sound of a \"lead\" synthesizer being played"
     },
     "music.drumSideStick": {
@@ -264,7 +264,7 @@
         "description": "Sound of a drum stick hitting the side of a drum (usually the snare)"
     },
     "pen.changeShade": {
-        "message": "sumar a sombra [SHADE]",
+        "message": "cambiar a sombra [SHADE]",
         "description": "legacy pen blocks - change pen shade"
     },
     "music.setTempo": {
@@ -288,7 +288,7 @@
         "description": "Option for the \"turn video [STATE]\" block"
     },
     "music.playNoteForBeats": {
-        "message": "tocar nota [NOTE] durante [BEATS] pulsos",
+        "message": "tocar nota [NOTE] durante [BEATS] tiempos",
         "description": "play a note for a number of beats"
     },
     "music.drumClaves": {
diff --git a/editor/interface/es.json b/editor/interface/es.json
index 0ef530f2..0116482b 100644
--- a/editor/interface/es.json
+++ b/editor/interface/es.json
@@ -72,11 +72,11 @@
         "description": "Button to change stage size to large"
     },
     "gui.howtos.switch-costume.name": {
-        "message": "Cambiar disfraz",
+        "message": "Cambiar avatar",
         "description": "Name for the 'Switch costume' how-to"
     },
     "gui.howtos.say-hello.step_addSprite": {
-        "message": "Añade un nuevo objeto",
+        "message": "Añade un nuevo sprite",
         "description": "Step name for 'Add a new sprite' step"
     },
     "gui.costumeTab.addFileBackdrop": {
@@ -92,11 +92,11 @@
         "description": "Title of the button to stop the sound"
     },
     "gui.loader.message2": {
-        "message": "Cargando objetos...",
+        "message": "Cargando sprites...",
         "description": "One of the loading messages"
     },
     "gui.stageHeader.fullscreenControl": {
-        "message": "Control a Pantalla Completa",
+        "message": "Control a pantalla completa",
         "description": "Button to enter/exit full screen mode"
     },
     "gui.soundEditor.redo": {
@@ -112,7 +112,7 @@
         "description": "Heading for the extension library"
     },
     "gui.webglModal.description": {
-        "message": "Lamentablemente parece que tu navegador u ordenador (webGlLink}. Esta tecnología es necesaria para ejecutar Scratch 3.0.",
+        "message": "Lamentablemente parece que tu navegador u ordenador {webGlLink}. Esta tecnología es necesaria para ejecutar Scratch 3.0.",
         "description": "WebGL missing message"
     },
     "gui.previewModal.viewproject": {
@@ -148,7 +148,7 @@
         "description": "One of the \"coming soon\" random messages for yet-to-be-done features"
     },
     "gui.cards.all-how-tos": {
-        "message": "Todos los Tutoriales",
+        "message": "Todos los tutoriales",
         "description": "Title for button to return to how-to library"
     },
     "gui.soundLibrary.chooseASound": {
@@ -156,11 +156,11 @@
         "description": "Heading for the sound library"
     },
     "gui.importInfo.invalidFormatError": {
-        "message": "Ups, ese enlace o identificador de proyecto no parece correcto.",
+        "message": "Oh, oh, ese enlace o identificador de proyecto no parece correcto.",
         "description": "Invalid project link or id message"
     },
     "gui.customProcedures.addAnInputNumberText": {
-        "message": "Añade una entrada",
+        "message": "Añadir una entrada",
         "description": "Label for button to add a number/text input"
     },
     "gui.menuBar.saveAsCopy": {
@@ -188,7 +188,7 @@
         "description": "Title for button to see more in how-to library"
     },
     "gui.customProcedures.addAnInputBoolean": {
-        "message": "Añade una entrada",
+        "message": "Añadir una entrada",
         "description": "Label for button to add a boolean input"
     },
     "gui.stageHeader.stageSizeSmall": {
@@ -200,7 +200,7 @@
         "description": "Menu bar item for saving now"
     },
     "gui.SpriteInfo.sprite": {
-        "message": "Objeto",
+        "message": "Sprite",
         "description": "Sprite info label"
     },
     "gui.menuBar.downloadToComputer": {
@@ -216,7 +216,7 @@
         "description": "Button to add a sound in the editor tab"
     },
     "gui.cameraModal.enableCameraCaption": {
-        "message": "Activar la cámara ",
+        "message": "Activar la cámara",
         "description": "A caption for a disabled button prompting the user to enable camera access"
     },
     "gui.loader.message5": {
@@ -232,11 +232,11 @@
         "description": "Name for the 'Glide around' how-to"
     },
     "gui.menuBar.uploadFromComputer": {
-        "message": "Subir de tu ordenador",
+        "message": "Subir desde tu ordenador",
         "description": "Menu bar item for uploading a project from your computer"
     },
     "gui.customProcedures.ok": {
-        "message": "OK",
+        "message": "Aceptar",
         "description": "Label for button to save new custom procedure"
     },
     "gui.spriteSelector.addBackdropFromLibrary": {
@@ -244,7 +244,7 @@
         "description": "Button to add a stage in the target pane from library"
     },
     "gui.soundEditor.slower": {
-        "message": "Más despacio",
+        "message": "Más lento",
         "description": "Title of the button to apply the slower effect"
     },
     "gui.howtos.spin-around.name": {
@@ -292,11 +292,11 @@
         "description": "Button to get to the backdrops panel"
     },
     "gui.prompt.ok": {
-        "message": "OK",
+        "message": "Aceptar",
         "description": "Button in prompt for confirming the dialog"
     },
     "gui.cameraModal.permissionRequest": {
-        "message": "Necesitamos tu permiso para usar tu cámara ",
+        "message": "Necesitamos tu permiso para usar la cámara",
         "description": "Notification to the user that the app needs camera access"
     },
     "gui.customProcedures.numberTextType": {
@@ -324,7 +324,7 @@
         "description": "Label for project share button"
     },
     "gui.crashMessage.description": {
-        "message": "Lo sentimos mucho, pero parece que Scratch ha dejado de funcionar. Ya se ha informado de este fallo al Equipo de Scratch. Por favor, recarga la página e inténtalo de nuevo.",
+        "message": "Lo sentimos mucho, pero parece que Scratch ha dejado de funcionar. Ya se ha informado de este fallo al equipo de Scratch. Vuelve a cargar la página e inténtalo de nuevo.",
         "description": "Unhandled error description"
     },
     "gui.webglModal.label": {
@@ -332,7 +332,7 @@
         "description": "WebGL missing title"
     },
     "gui.importInfo.goback": {
-        "message": "Volver",
+        "message": "Retroceder",
         "description": "Label for button to back out of importing a project"
     },
     "gui.monitor.contextMenu.large": {
@@ -352,7 +352,7 @@
         "description": "Step name for 'Click the block to run it' step"
     },
     "gui.spriteLibrary.chooseASprite": {
-        "message": "Elige un objeto",
+        "message": "Elige un sprite",
         "description": "Heading for the sprite library"
     },
     "gui.loader.headline": {
@@ -392,7 +392,7 @@
         "description": "Invitation to try 3.0 preview"
     },
     "gui.crashMessage.title": {
-        "message": "¡Ups! Algo ha fallado.",
+        "message": "¡Vaya! Algo ha fallado.",
         "description": "Unhandled error title"
     },
     "gui.spriteSelectorItem.contextMenuDuplicate": {
@@ -560,7 +560,7 @@
         "description": "Button to add a costume by uploading a file in the editor tab"
     },
     "gui.playbackStep.stopMsg": {
-        "message": "Parar",
+        "message": "Detener",
         "description": "Stop/Play button in recording playback"
     },
     "gui.howtos.spin.step_clickControl": {
@@ -612,7 +612,7 @@
         "description": "Menu item to switch to the default monitor"
     },
     "gui.controls.stop": {
-        "message": "Finalizar",
+        "message": "Detener",
         "description": "Stop button title"
     },
     "gui.costumeTab.addBlankCostume": {
@@ -624,7 +624,7 @@
         "description": "Step name for 'Drag out a “say” block' step"
     },
     "gui.customProcedures.runWithoutScreenRefresh": {
-        "message": "Ejecutar instantáneamente",
+        "message": "Ejecutar al instante",
         "description": "Label for checkbox to run without screen refresh"
     },
     "gui.stageSelector.addBackdropFromFile": {
@@ -632,7 +632,7 @@
         "description": "Button to add a stage in the target pane from file"
     },
     "gui.spriteSelector.addSpriteFromLibrary": {
-        "message": "Elige un objeto",
+        "message": "Elige un sprite",
         "description": "Button to add a sprite in the target pane from library"
     },
     "gui.soundEditor.sound": {
@@ -656,7 +656,7 @@
         "description": "Name for the 'Add a backdrop' how-to"
     },
     "gui.comingSoon.message2": {
-        "message": "Pronto...",
+        "message": "Próximamente...",
         "description": "One of the \"coming soon\" random messages for yet-to-be-done features"
     },
     "gui.howtos.say-hello.step_clickSay": {
@@ -680,7 +680,7 @@
         "description": "Step name for 'Click the “Looks” category' step"
     },
     "gui.playbackStep.reRecordMsg": {
-        "message": "Regrabar",
+        "message": "Volver a grabar",
         "description": "Button to re-record sound in recording playback"
     },
     "gui.importInfo.message": {