In September of 2014 the Royal Canadian Air Force issued several press releases concerning imminent changes to RCAF uniform, principally changes to rank insignia (which contained several obvious errors regarding historical RCAF ranks and rank insignia).
Unfortunately it's the sort of bafflingly nonsensical proposal that we've come to expect from those in charge of the armed forces of Canada over the last half-century.
The present gold stripes are to be replaced with composite braid similar to that worn on service dress coats of other Commonwealth air forces. However, instead of the braid being black and pale blue, it's to be black and pearl grey on the grounds that officers' insignia should be more similar to insignia of other ranks despite there being no need for such similarity. Although the colour scheme is different from that of other Commonwealth air forces the general effect will certainly be more "air forceish", so the new insignia will encourage the misidentification of the RCAF's current (army-type) ranks as its former (air force-type) ranks to an even greater degree than previously. (As Army officer ranks are to be retained by the RCAF they should be represented by Army officer insignia, worn on shoulder straps.)
The fixation on grey goes further than officers' rank braid. The piping on senior officers' side-caps (pale blue in other Commonwealth air forces) will go from gold to pearl grey. And, most surprisingly, silver buttons are to be introduced to replace gold buttons on RCAF uniforms despite it being a military service, despite the RCAF's own tradition of gold buttons (whatever colours its rank insignia have been), despite the unjustifiable cost of replacing the buttons, and despite nearly all Commonwealth air forces having gold buttons regardless of the colours of their rank insignia. The sole notable exception to gold buttons is the Indian Air Force, which, just as inexplicably and ridiculously, replaced its gold buttons, buckles and insignia with silver ones some years ago, predictably resulting in IAF members looking more like policemen than airmen.
Unfortunately, as with the Royal Canadian Navy, the RCAF will retain an excessive number/width of stripes for the most junior officers and officer cadets. And despite the imminent introduction of a distinctive stripe arrangement for each general rank the RCAF will retain the nonsensical "lieutenant-general plus one or more leaves" designs for all general ranks. Not only will the latter be superfluous once each general rank has different insignia of the stripe variety, they contradict the Canadian Army's recently-corrected insignia for the same ranks, which of course includes the Lieutenant-General design only for lieutenant-generals. There is also no intention to correct the eccentric, exceptional, nonsensical and top-heavy arrangement of WO and NCO ranks.