Mapping out phase: in progress of adding a separate JPanel for
displaying tiles, which will eventually go on a JFrame in a multi-window
environment.
Rounded out the brush palette with Solids, Thrus, and Scenes and added
the method to the main level editor canvas to change brush types and
states instantly (bypassing the whole 'SELECTING_WHATEVER' 'PLACING
WHATEVER' thing).

Next step will be to set up a multi-window environment to launch and
test this toolbar with just the three basic tile types and see how it
works.
Got first draft of palette system and desktop system working, along with
colour inversion for ease of seeing all types of tiles. Need to test
with large quantities to see how the palette scales and of course add
other tile types as well as 'current selection' features and
resizability
Added a transparency for solids, thrus, and scenes that shows the
current tile selected when editing. Removed old ways of choosing those.
As conveyers, collapsibles, hazards, and goodies are added to the
palette, the old selection methods for those will be retired too.
Hazards moved to palette and removed from original selection form
Added conveyer belts to palette and removed original selection ability
Moved ALL tile types to the palette.