Added some detail to a Doxygen comment (thanks, Sylvain!).
diff --git a/include/SDL_blendmode.h b/include/SDL_blendmode.h
index 36a5ea7..cd082ab 100644
--- a/include/SDL_blendmode.h
+++ b/include/SDL_blendmode.h
@@ -90,12 +90,12 @@ typedef enum
/**
* \brief Create a custom blend mode, which may or may not be supported by a given renderer
*
- * \param srcColorFactor
- * \param dstColorFactor
- * \param colorOperation
- * \param srcAlphaFactor
- * \param dstAlphaFactor
- * \param alphaOperation
+ * \param srcColorFactor source color factor
+ * \param dstColorFactor destination color factor
+ * \param colorOperation color operation
+ * \param srcAlphaFactor source alpha factor
+ * \param dstAlphaFactor destination alpha factor
+ * \param alphaOperation alpha operation
*
* The result of the blend mode operation will be:
* dstRGB = dstRGB * dstColorFactor colorOperation srcRGB * srcColorFactor