Scope doesn't display RGB-values of zero corretly

[RonSte]

Dear Affinity Team,

first of all congratulation to this great peace of software and the corresponding tutorials! 

I stumbled across a minor bug regarding scope display.  

To point this out I created a grey scale test file ranging from 100% black to 100% white in steps of 25%.

Looking at the various RGB scopes the black value RGB(0,0,0) shows at 100% scale same as full white RGB(255,255,255) for all channels (Screenshot and test file attached).

You also see this when just adding a pure red to a blank image. It also shows blue and green at 100% despite the fact that they are actually zero.

Best wishes,

Ronald

TestRGBScope.afphoto

[Chris B]

Hey RonSte,

I've waiting to get some feedback on this. Apologies it is taking so long.