Hi there ! I'm using this really great software, but i'm a bit confused with the PCB footprints for resistors and caps that i find in the LCSC library. Are they Imperial or Metric ? I think they are Metric when i see the difference betwenn 1210 and 3225 , but i would like to be sure.... And, are they suitable for reflow or wave ? Or maybe both ? Thanks :-) Olivier