diff --git a/src/app.cpp b/src/app.cpp
index 521ea28..51713c9 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -1216,7 +1216,12 @@ void App::render()
                 }
                 logoPath = util::getExecutableDirectory() + "/res/img/" + iconFile;
             }
-            if (util::LoadTextureFromFile(logoPath.c_str(), &logo_tex_, &logo_w_, &logo_h_)) {
+            // Only attempt the disk read when the file is actually present (dev build / theme drop-in).
+            // The portable single-file build has no res/img/ beside it, so skip straight to the
+            // embedded copy instead of logging a spurious "failed to read".
+            std::error_code logoEc;
+            if (std::filesystem::exists(logoPath, logoEc) &&
+                util::LoadTextureFromFile(logoPath.c_str(), &logo_tex_, &logo_w_, &logo_h_)) {
                 DEBUG_LOGF("Loaded header logo from %s (%dx%d)\n", logoPath.c_str(), logo_w_, logo_h_);
             } else {
                 // Try embedded data fallback — use actual filename from path
@@ -1251,7 +1256,9 @@ void App::render()
         std::string coinFile = (cit != coinElem.extraColors.end() && !cit->second.empty())
             ? cit->second : "logos/logo_dragonx_128.png";
         std::string coinPath = util::getExecutableDirectory() + "/res/img/" + coinFile;
-        if (util::LoadTextureFromFile(coinPath.c_str(), &coin_logo_tex_, &coin_logo_w_, &coin_logo_h_)) {
+        std::error_code coinEc;
+        if (std::filesystem::exists(coinPath, coinEc) &&
+            util::LoadTextureFromFile(coinPath.c_str(), &coin_logo_tex_, &coin_logo_w_, &coin_logo_h_)) {
             DEBUG_LOGF("Loaded coin logo from %s (%dx%d)\n", coinPath.c_str(), coin_logo_w_, coin_logo_h_);
         } else {
             // Try embedded resource fallback (Windows single-file distribution)