diff --git a/es-core/src/components/ImageComponent.cpp b/es-core/src/components/ImageComponent.cpp
index cc069634d..2d13b6ce0 100644
--- a/es-core/src/components/ImageComponent.cpp
+++ b/es-core/src/components/ImageComponent.cpp
@@ -555,6 +555,32 @@ void ImageComponent::applyTheme(const std::shared_ptr<ThemeData>& theme,
         }
         imageTypes = Utils::String::replace(imageTypes, ",,", ",");
         mThemeImageTypes = Utils::String::delimitedStringToVector(imageTypes, ",");
+
+        if (mThemeImageTypes.empty()) {
+            LOG(LogError) << "ImageComponent: Invalid theme configuration, property <imageType> "
+                             "contains no values";
+        }
+
+        for (std::string& type : mThemeImageTypes) {
+            if (std::find(supportedImageTypes.cbegin(), supportedImageTypes.cend(), type) ==
+                supportedImageTypes.cend()) {
+                LOG(LogError)
+                    << "ImageComponent: Invalid theme configuration, property <imageType> "
+                       "defined as \""
+                    << type << "\"";
+                mThemeImageTypes.clear();
+                break;
+            }
+        }
+
+        std::vector<std::string> sortedTypes {mThemeImageTypes};
+        std::stable_sort(sortedTypes.begin(), sortedTypes.end());
+
+        if (std::adjacent_find(sortedTypes.begin(), sortedTypes.end()) != sortedTypes.end()) {
+            LOG(LogError) << "ImageComponent: Invalid theme configuration, property <imageType> "
+                             "contains duplicate values";
+            mThemeImageTypes.clear();
+        }
     }
 
     if (elem->has("metadataElement") && elem->get<bool>("metadataElement"))
diff --git a/es-core/src/components/ImageComponent.h b/es-core/src/components/ImageComponent.h
index 1849f149a..da6857008 100644
--- a/es-core/src/components/ImageComponent.h
+++ b/es-core/src/components/ImageComponent.h
@@ -128,6 +128,10 @@ private:
 
     std::string mDefaultPath;
 
+    static inline std::vector<std::string> supportedImageTypes {
+        "image", "miximage",  "marquee", "screenshot",    "titlescreen",
+        "cover", "backcover", "3dbox",   "physicalmedia", "fanart"};
+
     std::shared_ptr<TextureResource> mTexture;
     float mFadeOpacity;
     float mReflectionsFalloff;
diff --git a/es-core/src/components/VideoComponent.cpp b/es-core/src/components/VideoComponent.cpp
index b0ebf299f..3e0d46ab0 100644
--- a/es-core/src/components/VideoComponent.cpp
+++ b/es-core/src/components/VideoComponent.cpp
@@ -206,6 +206,32 @@ void VideoComponent::applyTheme(const std::shared_ptr<ThemeData>& theme,
         }
         imageTypes = Utils::String::replace(imageTypes, ",,", ",");
         mThemeImageTypes = Utils::String::delimitedStringToVector(imageTypes, ",");
+
+        if (mThemeImageTypes.empty()) {
+            LOG(LogError) << "VideoComponent: Invalid theme configuration, property <imageType> "
+                             "contains no values";
+        }
+
+        for (std::string& type : mThemeImageTypes) {
+            if (std::find(supportedImageTypes.cbegin(), supportedImageTypes.cend(), type) ==
+                supportedImageTypes.cend()) {
+                LOG(LogError)
+                    << "VideoComponent: Invalid theme configuration, property <imageType> "
+                       "defined as \""
+                    << type << "\"";
+                mThemeImageTypes.clear();
+                break;
+            }
+        }
+
+        std::vector<std::string> sortedTypes {mThemeImageTypes};
+        std::stable_sort(sortedTypes.begin(), sortedTypes.end());
+
+        if (std::adjacent_find(sortedTypes.begin(), sortedTypes.end()) != sortedTypes.end()) {
+            LOG(LogError) << "VideoComponent: Invalid theme configuration, property <imageType> "
+                             "contains duplicate values";
+            mThemeImageTypes.clear();
+        }
     }
 
     if (elem->has("pillarboxes"))
diff --git a/es-core/src/components/VideoComponent.h b/es-core/src/components/VideoComponent.h
index 5709fada3..96000837b 100644
--- a/es-core/src/components/VideoComponent.h
+++ b/es-core/src/components/VideoComponent.h
@@ -113,6 +113,10 @@ protected:
     std::string mStaticImagePath;
     std::string mDefaultImagePath;
 
+    static inline std::vector<std::string> supportedImageTypes {
+        "image", "miximage",  "marquee", "screenshot",    "titlescreen",
+        "cover", "backcover", "3dbox",   "physicalmedia", "fanart"};
+
     std::string mVideoPath;
     unsigned mStartTime;
     std::atomic<bool> mIsPlaying;