Make New Textures/Sprites

[crombach]

Core:

• Background texture (looks better when zoomed out, maybe lighter coloring)
• Wall texture
• Fan sprite (higher res, looks more like we are seeing fan from side, gray/white coloring)
• New static decoration sprite - Hologram of Tech-0.2 (An old rusted version of Tech-17 in a 'photo frame')
• New static decoration sprite - A window that shows earth outside
• Exit door (should look different than the entrance door)
• Consolidate sprites onto a couple big texture sheets (as opposed to individual files)

Stretch:

• TECH17 space suit
• Obstacles

[crombach]

I think the exit door should be open (could be just an empty threshold). Alternatively, we could just give the entrance door a red light to indicate it's not the target.