The discussion revolves around the intentional design choices behind the iconography of PuTTY tools, focusing on the meanings and histories associated with colors used, such as yellow for the lightning bolt symbolizing electricity, and blue for screens. The comments reflect on the challenges developers face with design decisions and the creative process, highlighting how even small design elements can evoke nostalgia and contribute to a software's identity. There’s also a connection made to historical software, illustrating how icon designs can be influenced by prior usages in the tech space.