Greenedge jet says, in his knowlegable post 39, that CANOPY JETTISON IS MORE COMPLICATED than described by some in these pages. The red handle does not release the canopy, only unlocks it! you must then rotate the larger handle nearly through 180 degrees, then the inside arm has to push the frame back and up - THE PROCEDURE TAKES A GOOD FEW SECONDS TO COMPLETE. If this is true, merely touching the red handle once a month seems inadequate preparation in the event of need.
Fitter 2 reminds us that a second fatal midair involving a Tutor took place later last year. A collision with a glider. As no report has yet been issued, we don't know the details, BUT it is significant that the glider pilot was able to jettison the canopy and parachute to safety, while the two in the Tutor were not so fortunate.
It should certainly concern those using the Tutor that regardless of the original causes of the midair, it should be modified to provide a prompt exit.
On the question of colour, yes, white is preferred for composit aircraft to prevent different expansions. A Grob motor glider was imported from France tastefully decorated in two tones of blue; before the UK would give it a C of A, most of the blue colour had to be removed.
Studies have been made in using dayglow colours to make gliders more conspicuous, the effect seems to be one of camoflage, breaking up the outline, rather than making it easier to see. Remember how zigzags in contrasting colours were painted on shipping during WWII?
As for dark colours, I recollect the stealth plane is black.
It may be that FLARM is the answer, so we may learn something from the gliding people after all.