Spotcolor and tones

[Eisbar]

Is there a possibility to create tonal values from a spotcolor?

If I create tonal values from the Spotcolor, then the individual tone values are created - but converted into process colors. But it would be very practical if these tonal values were defined as a percentage of the spot color. (So print density, ink application)

thx

[thomaso]

Unless there was an improvement in V2 it is impossible and discussed in the forum a few times. Not only spot colour tints also RGB or CMYK tints may result for any of the "Add Chord to Swatch" options in the Colours Panel as swatches in a different colour space/mode than expected.

A bug report for CMYK tint swatches in macOS: https://forum.affinity.serif.com/index.php?/search/&tags=afd-3236

For spot colours it is also known that Affinity doesn't allow to mix them, e.g. to create a colour swatch made of two spot colours.
Also known irritations with swatch & colour definitions may be related.

[lacerto]

3 hours ago, Eisbar said:

If I create tonal values from the Spotcolor, then the individual tone values are created - but converted into process colors. But it would be very practical if these tonal values were defined as a percentage of the spot color. (So print density, ink application)

I may have misunderstood something so if you have questions, please post comments and I try to answer.

A spot color (or any other color) that serves as a master (parent) must be marked as a global color swatch to be able to serve as a parenting color. All tones that are children of a master retain this relationship so for user-defined global colors (including spot colors) if the master changes, the children change accordingly; however, the library based spot colors cannot be redefined:

Tints of a spot color (whether library or user defined) however show correctly as shades of parenting inks:

 Note that unlike in InDesign (and possibly other layout apps), you cannot use a tint of a spot (or another global) color as a base and parent of sub child swatches (and still dependent of the original master) so the dependencies can only be direct master-children based within Affinity apps. Affinity apps also do not allow replacing one global color with another, and inheritance of tonal dependencies, so the ways you can benefit of master-children dependencies in Affinity apps are rather limited.