diff --git a/material_maker/icons/custom.png b/material_maker/icons/custom.png
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diff --git a/material_maker/icons/custom.png.import b/material_maker/icons/custom.png.import
deleted file mode 100644
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diff --git a/material_maker/icons/preview.png b/material_maker/icons/preview.png
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diff --git a/material_maker/icons/preview.png.import b/material_maker/icons/preview.png.import
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diff --git a/material_maker/icons/preview_locked.png b/material_maker/icons/preview_locked.png
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diff --git a/material_maker/icons/preview_locked.png.import b/material_maker/icons/preview_locked.png.import
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diff --git a/material_maker/nodes/base.gd b/material_maker/nodes/base.gd
index ec8a871170..5d84f35788 100644
--- a/material_maker/nodes/base.gd
+++ b/material_maker/nodes/base.gd
@@ -19,8 +19,6 @@ const RANDOMNESS_ICON : Texture2D = preload("res://material_maker/icons/randomne
 const RANDOMNESS_LOCKED_ICON : Texture2D = preload("res://material_maker/icons/randomness_locked.tres")
 const BUFFER_ICON : Texture2D = preload("res://material_maker/icons/buffer.tres")
 const BUFFER_PAUSED_ICON : Texture2D = preload("res://material_maker/icons/buffer_paused.tres")
-const PREVIEW_ICON : Texture2D = preload("res://material_maker/icons/preview.png")
-const PREVIEW_LOCKED_ICON : Texture2D = preload("res://material_maker/icons/preview_locked.png")
 
 const MENU_PROPAGATE_CHANGES : int = 1000
 const MENU_SHARE_NODE : int        = 1001
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diff --git a/material_maker/panels/preview_3d/thumbnails/meshes/Cube.png.import b/material_maker/panels/preview_3d/thumbnails/meshes/Cube.png.import
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diff --git a/material_maker/theme/new_theme_icons.png.import b/material_maker/theme/new_theme_icons.png.import
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