TIP #055: Use different footprint for resistors and capacitors, even they are same size (e.g. 0805) - YouTube
PCB Assembly Services - Screaming Circuits: PCB Design for Clarity: DIODE POLARITY (NO, IT'S NOT OBVIOUS)
S-0805 footprint & symbol by Johanson | SnapEDA
Diodes THT: Polarity marker on silk not ideal for most footprints and second (fab) reference interferes with other fab graphics · Issue #78 · KiCad/kicad-footprints · GitHub