I want to improve the design of my website (https://pixelbay.net/). Rather than altering the image myself via Gimp every time I want to post, one feature I want to add is that the main category displays in the corner of the featured image. I basically want something similar to what the CoverNews theme provides, (or the Bootstrap News featured section) but I want to remain on the Bootstrap News theme.
How would I manage something like this, is there a plugin or is this only able to be done via HTML / CSS? What would I search for to learn how to add this feature if it is that way?
Read more here:: Bootstrap News: Image Modifciation