Even though I have selected thumbnail images for the blog page & Single post page, the images appear expanded and blurred. How do I fix this? Please login to admin panel to view page (see private content).
Content is visible for topic creator and support staff only.
Block with image is 570px width. If you set the smaller image (in your case 300×300) image has 100% width and looks blurred. Either set the bigger image in settings http://prntscr.com/f6o3b8 or add the following code in Theme Options > Styling > Custom CSS
Single post uses large image size (Settings > Media > large). So, either change these media settings and regenerate thumbnails or add the following custom code to add the limit for the single post image height