Only scale the screenshot by the DPI scale if we are doing automatic High DPI scaling, otherwise the native resolution is correct.

src/rcore.c

@@ -1879,7 +1879,10 @@ void TakeScreenshot(const char *fileName)
     // Security check to (partially) avoid malicious code
     if (strchr(fileName, '\'') != NULL) { TRACELOG(LOG_WARNING, "SYSTEM: Provided fileName could be potentially malicious, avoid [\'] character"); return; }
 
-    Vector2 scale = GetWindowScaleDPI();
+    // apply a scale if we are doing HIGHDPI auto-scaling
+    Vector2 scale = { 1,1 };
+    if (IsWindowState(FLAG_WINDOW_HIGHDPI)) scale = GetWindowScaleDPI();
+
     unsigned char *imgData = rlReadScreenPixels((int)((float)CORE.Window.render.width*scale.x), (int)((float)CORE.Window.render.height*scale.y));
     Image image = { imgData, (int)((float)CORE.Window.render.width*scale.x), (int)((float)CORE.Window.render.height*scale.y), 1, PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 };