To help you find the "proper blog post" or the file itself, could you clarify:

(Many creators use terms like "Fine Lines" for minimalist aesthetics.)

(e.g., a Lightroom preset, a font, a Photoshop brush, or a UI kit?)

If you can provide even a small detail about the visual style or the platform where you first saw it, I can track down the official source or a reliable mirror for you.