diff --git a/src/lib/sw_engine/tvgSwRenderer.cpp b/src/lib/sw_engine/tvgSwRenderer.cpp
index c2038916..bc6b23d8 100644
--- a/src/lib/sw_engine/tvgSwRenderer.cpp
+++ b/src/lib/sw_engine/tvgSwRenderer.cpp
@@ -335,6 +335,10 @@ void* SwRenderer::beginComposite(uint32_t x, uint32_t y, uint32_t w, uint32_t h)
     if (x + w > surface->w) w = (surface->w - x);
     if (y + h > surface->h) h = (surface->h - y);
 
+#ifdef THORVG_LOG_ENABLED
+    printf("SW_ENGINE: Using intermediate opacity composition [Region: %d %d %d %d]\n", x, y, w, h);
+#endif
+
     comp->bbox.min.x = x;
     comp->bbox.min.y = y;
     comp->bbox.max.x = x + w;
diff --git a/src/loaders/svg/tvgSvgLoader.cpp b/src/loaders/svg/tvgSvgLoader.cpp
index 9a9a98ae..e7c56b4e 100644
--- a/src/loaders/svg/tvgSvgLoader.cpp
+++ b/src/loaders/svg/tvgSvgLoader.cpp
@@ -1050,7 +1050,7 @@ static SvgNode* _createMaskNode(SvgLoaderData* loader, SvgNode* parent, const ch
 
     loader->svgParse->node->display = false;
 #ifdef THORVG_LOG_ENABLED
-    printf("[SVG] Unsuppoted elements used [Elements: mask]\n");
+    printf("SVG: Unsuppoted elements used [Elements: mask]\n");
 #endif
 
     return loader->svgParse->node;
@@ -2131,7 +2131,7 @@ static void _svgLoaderParserXmlOpen(SvgLoaderData* loader, const char* content,
     }
 #ifdef THORVG_LOG_ENABLED
     else {
-        printf("[SVG] Unsuppoted elements used [Elements: %s]\n", tagName);
+        printf("SVG: Unsuppoted elements used [Elements: %s]\n", tagName);
     }
 #endif
 }
diff --git a/src/loaders/svg/tvgXmlParser.cpp b/src/loaders/svg/tvgXmlParser.cpp
index 85525790..9c384974 100644
--- a/src/loaders/svg/tvgXmlParser.cpp
+++ b/src/loaders/svg/tvgXmlParser.cpp
@@ -186,7 +186,7 @@ bool simpleXmlParseAttributes(const char* buf, unsigned bufLength, simpleXMLAttr
         tval[valueEnd - value] = '\0';
 
 #ifdef THORVG_LOG_ENABLED
-        if (!func((void*)data, tmpBuf, tval)) printf("[SVG] Unsuppoted attributes used [Elements type: %s][Attribute: %s]\n", nodeTypeToString(((SvgLoaderData*)data)->svgParse->node->type).c_str(), tmpBuf);
+        if (!func((void*)data, tmpBuf, tval)) printf("SVG: Unsuppoted attributes used [Elements type: %s][Attribute: %s]\n", nodeTypeToString(((SvgLoaderData*)data)->svgParse->node->type).c_str(), tmpBuf);
 #else
         func((void*)data, tmpBuf, tval);
 #endif