Aftemplate

https://ninedegreesbelow.com/photography/linear-gamma-blur-normal-blend.html
http://www.ericbrasseur.org/gamma.html
https://docs.krita.org/en/general_concepts/colors/linear_and_gamma.html
Watch both links. Gimp v2.10.28 gamma is perfect, Pass my test.
this modification to give more space to darker values does lead to wonky color maths when mixing the colors.
We can see this with the following experiment:

Left: Colored circles blurred in a regular sRGB space. Right: Colored circles blurred in a linear space.
Colored circles, half blurred. In a gamma-corrected environment, this gives an odd black border. In a linear environment, this gives us a nice gradation.
This also counts for color smudge brush:

That’s right, the ‘muddying’ of colors as is a common complaint by digital painters everywhere, is in fact, a gamma-corrected colorspace mucking up your colors. If you had been working in LAB to avoid this, be sure to try out a linear rgb color space.

https://ninedegreesbelow.com/photography/linear-gamma-blur-normal-blend.html
http://www.ericbrasseur.org/gamma.html
https://docs.krita.org/en/general_concepts/colors/linear_and_gamma.html
Watch both links. Gimp v2.10.28 gamma is perfect, Pass my test.
this modification to give more space to darker values does lead to wonky color maths when mixing the colors.
We can see this with the following experiment:

Left: Colored circles blurred in a regular sRGB space. Right: Colored circles blurred in a linear space.
Colored circles, half blurred. In a gamma-corrected environment, this gives an odd black border. In a linear environment, this gives us a nice gradation.
This also counts for color smudge brush:

That’s right, the ‘muddying’ of colors as is a common complaint by digital painters everywhere, is in fact, a gamma-corrected colorspace mucking up your colors. If you had been working in LAB to avoid this, be sure to try out a linear rgb color space.

We are pleased to announce an update for the MacOS release of Affinity Photo, version 1.10.5
The detailed changes in Affinity Photo for MacOS 1.10.5 over the release build Affinity Photo for macOS 1.10.4 are as follows:
Fixes & Improvements:
Updated the RAW import library Fixed possible registration failures (will now use the browser to complete registration, rather than attempt it in-app) Fixed the Overlay Paint Brush incorrectly starting at the edge of canvas. Live radial blur could show tiling errors on export. Background layer is blurred when re-opening afphoto file. Fixed Metal corruption on canvas when using FX. Partial fix to the Overlay Paint and Erase Tools (Develop Persona): painting "separated dots" (spacing issues) in small brush sizes. Attempted to fix graphics corruption for some users of earlier macOS versions. Fixed odd overlay brush behaviour on portrait RAW files. Help & localisation improvements. The major improvements in 1.10 since 1.9 are listed in some detail in this 1.10.0 Photo macOS update announcement
 
UPDATING TO THIS VERSION (Free for existing customers)
The software version can be seen on the splash screen and the About dialog (in application menu, Affinity Photo > About).
If you’ve purchased from the Mac App Store— updates are done automatically next time you run your software after it is available in the Mac App Store. If this does not happen for you, open the Mac App Store app and go to the Updates page and then Store > Reload page or press CMD+R. This should hopefully force the update to show. Apple sometimes phase roll outs around the world which can mean it may take up to 72 hours for your update to be available.
If you’ve purchased from the Affinity Store— each time you start the software it will check for updates and offer to download and install any available update, or in the application main menu there is an option Check for Updates. You can download the latest installer by logging into the affinity store here and find the order in your account and use the "download" button in there. Alternatively, this new release (and previous versions of Affinity Photo for macOS) can be downloaded from this link (that installer is NOT for Mac app store purchases and needs a product key).

We are pleased to announce Affinity Designer, Affinity Photo and Affinity Publisher are now all updated to version 1.10.5 (for all new and existing customers).
Here are links to the release notes
Affinity Designer 1.10.5 for Windows               ( Microsoft Store and Affinity Store ) Affinity Designer 1.10.5 for macOS                  ( Mac App Store and Affinity Store ) Affinity Designer 1.10.5 for iOS                        ( Apple iPad Store )
  Affinity Photo 1.10.5 for Windows                    ( Microsoft Store and Affinity Store ) Affinity Photo 1.10.5 for macOS                       ( Mac App Store and Affinity Store )  Affinity Photo 1.10.5 for iOS                             ( Apple iPad Store ) 
  Affinity Publisher 1.10.5 for Windows              ( Microsoft Store and Affinity Store ) Affinity Publisher 1.10.5 for macOS                 ( Mac App Store and Affinity Store ) Please follow this thread here to get notified when any new releases are made

We are pleased to announce Affinity Designer, Affinity Photo and Affinity Publisher on Windows are now all updated to version 1.10.5 (for all new and existing desktop customers).
Here are links to the release notes
Affinity Designer 1.10.5 for Windows               ( Microsoft Store and Affinity Store ) Affinity Designer 1.10.4 for macOS                  ( Mac App Store and Affinity Store )
  Affinity Photo 1.10.5 for Windows                    ( Microsoft Store and Affinity Store ) Affinity Photo 1.10.4 for macOS                       ( Mac App Store and Affinity Store ) 
  Affinity Publisher 1.10.5 for Windows              ( Microsoft Store and Affinity Store ) Affinity Publisher 1.10.4 for macOS                 ( Mac App Store and Affinity Store ) Please follow this thread here to get notified when any new releases are made

Hello @ra.skill Have you tried Valentina for pattern making?  It is specifically built for pattern making professionals and is Open source.

https://ninedegreesbelow.com/photography/linear-gamma-blur-normal-blend.html
http://www.ericbrasseur.org/gamma.html
https://docs.krita.org/en/general_concepts/colors/linear_and_gamma.html
Watch both links. Gimp v2.10.28 gamma is perfect, Pass my test.
this modification to give more space to darker values does lead to wonky color maths when mixing the colors.
We can see this with the following experiment:

Left: Colored circles blurred in a regular sRGB space. Right: Colored circles blurred in a linear space.
Colored circles, half blurred. In a gamma-corrected environment, this gives an odd black border. In a linear environment, this gives us a nice gradation.
This also counts for color smudge brush:

That’s right, the ‘muddying’ of colors as is a common complaint by digital painters everywhere, is in fact, a gamma-corrected colorspace mucking up your colors. If you had been working in LAB to avoid this, be sure to try out a linear rgb color space.

This feature is unparalleled and extremely powerful.
redefines vector coloring.
Affinity should do everything in its power to support this feature.  @TonyB   
Learn more:
https://helpx.adobe.com/illustrator/using/gradients.html#create_apply_freeform_gradient

The developers monitor the Feature Requests & Feedback forums, not the Questions one. Of course, if you browse through those forums, you will see there are far more feature requests than they could add to the apps without bloating both the size & cost of the apps greatly.

I use the soiftware for the same reason.  I am a knitter and need this deperately,  Affinity is my designing preffered tool, dut for what i see i will have do switch to CAD (not my thing, too expensive).
Affinity developers, don’t you monitor these forums?

Wasn't trying to be cynical. I was confused because the links lead to a blog that is run by a software engineer, and Aftemplate posted under them, about being a expert user. My thinking is that if that was Aftemplate's blog, a software engineer is considered an expert. Just never heard of a expert user, and during most of my adult life, my career, experts was a legal term, and people made claim to be expert in whatever, and really weren't.

I'm sorry to have this misunderstanding, Although I don't mean that. That's what you mean, you can't represent mine.
If that was my blog, I would say I'm a developer. I emphasize myself as a user, expert.
So, what's not a expert user? They don't even understand the difference between HSV and HSL, A bunch of people who just fiddle with the sliders by feeling. They don't understand why they should use this value, Just because PS tutorial tells him: use this value!
You should be obsessed with technology. Clinging to this will not help you improve your technology...Like my said: It seems that you are obviously good at this.

Perhaps one definition would include someone who is an expert at using & understanding the differences in how the various color pickers work?

Why talk about this? Meaningless things will only waste your time. And my time. It seems that you are obviously good at this.

Nice work on your side. After getting oklab implanted into PS, I hope you succeed at Affinity, too.
The kind of hope like peace, curing diseases, feeding the hungry. Probably never happens.
 

https://bottosson.github.io/posts/oklab/
https://bottosson.github.io/posts/colorpicker/
You are talking about what I am familiar. I am an expert user.

The lightness affecting saturation is part of how HSL works, so it's working properly. It's just a crappy model of color. The polar transformations of CIELUV and CIELAB, known as HCL or LCH (usually with ab or uv written afterwards to indicate which CIE color model is used as the basis) are far better at separating lightness and chroma (not saturation). HSV and HSL don't even separate luminosity and saturation from the hue well, and the same lightness/value for different hues corresponds to different lightness when measured with a device independent color space like CIELAB. HCLuv/ab is also independent of the particular working color space, being based on such device independent color models.

 

Hi Scott, HVDB Phototography, Dave,
The new HSL adjustment was tweaked to output results more in line with other editors/maintain visual fidelity when exchanging files with hsl adjustment layers. These modification are by design/intentional.

Thank you very much @anon2!
The layer should not be white, but slightly gray to create a shadow... I put it like this in the forum because in white the problem is quite easy to see (because with Multiply it should "look like" transparent and it doesn't).
I actually solved it with a similar workaround to what you describe. I removed the color from the parent layer and I added a white square inside it as child... with the parent being "multiply" and all children being normal blending mode.
Still, it's q pity this doesn't get Serif's attention, as these small things can be a very frustrating. When simple things don't work as expected and you have to spend hours trying to understand what you're doing wrong, just to learn in the end that it was a bug 😵... hehehe.
Thanks anyway for your help!
 

@Chris B
can you check that this has been correctly reported, and that the developers are aware please.

Compared to Photoshop (latest version) it is obvious that the new HSL L control desaturates the colours. Even in 8-bit mode.

The luminosity shift in the new HSL control seems to be desaturating the colours.
Just select any colour range and increase or decrease the luminance and the colours become black and white.

I am puzzled how the HSL adjustment works with the Luminosity slider. I would presume it would only affect the luminosity, but it also affects the saturation value? Any ideas why? What am i not seeing or is this a bug?
 

For those who want to visually see / inspect the HSL values at once for every pixel of an image, i create a procedural texture filter mapping the HSL values into RGB channel.
To see H, use channels panel to see only R
For S, select G channel 
For L, select B channel.
You can then modify e.g. only luminosity without affecting saturation.
 

Hi,
 
after quite a bit of experimenting i finally found a working live filter to convert RGB into HSL, and back to RGB.
The HSL values are stored in RGB channels, and must be interpreted accordingly (e.g. multiply R by 360 to get the classical 0-360 degree for hue). H in R, S in G, L in B.
This will allow you to access individual channels (hue, saturation, and luminosity), and modify independently, or use for intelligent masking / filtering.
The formulas are based on: https://en.wikipedia.org/wiki/HSL_and_HSV#From_RGB
Please use RGB/16 to avoid rounding / banding issues, even if the formula are only capable to convert RGB/8 color data.
Use it at own risk, and have fun with it.
Purposes:
Create mask or selections based on hue saturation  luminosity  upper / lower bounds of these values and combination of above (and, or)  
create 2 dimensional charts of one fixed and two variable parameters of the three, e.g. all possible  hue / saturation values for fixed luminosity of 50%  
modify saturation (independent from hue / lum) modify luminosity (independent from hue / sat) modify hue (independent from sat / lum) swap HSL channels  invert HSL channels Update:
New Version, now working with V2
preset file for easy import into PT filter presets 
 
RGB HSL PT filter.aftoolpresets perfect RGB HSL RGB conversion with test image V2.afphoto