Mosaic 1 is very similar to the former stand-alone Mosaic status. With each higher tier reached, more valuable perks become available. JetBlue uses a metric known as Tiles for Mosaic status ...

The source code has been updated to modern C++ style and for cross-platform use.

If you don’t know which to start with yet, a standard leaf rake is the safest choice ever. Aside from raking up all the leaves and debris, a rake is also used for removing pebbles to level the ground.