First, let me tell you that I am not from a coding background. Recently, I started a website using blogger. I don't have any featured image/thumbnail to any of my posts. So, blogger is displaying the text 'no image'. I am able to change the text name from 'no image' to some other text. But what I need is to change the text 'no image' into the label name that I have given for that particular post. So that, every post's thumbnail displays that particular label for that post instead of "no image".
For example, if the label for a post titled 'title_1' is 'label_1', then the thumbnail for the post 'title_1' should display 'label_1' instead of 'no image'.
Please help me, how to change it into label name.