smooth science guy drawing on sciplane when window is enlarged
fix main screen weapons view mode
put real weapons indicator direction on nav
add a fragment shader function to line mesh rendering

("fragment shader" is not what you're thinking it is.  -- Ed.)
replace green and cyan with a gradient color range
draw an absolute orientation indicator on nav screen
update nav reverse button color to keep in sync with server
stop slow zoom on nav when first switching to screen
change mouse scroll wheel on nav to zoom
tweak max zoom level and object scales on nav