NotMyFault

Try reset studio Select the Persona that you want to reset the Studio for. From the Window menu, select Studio>Reset Studio.

Did you hide some tools by accident? https://affinity.help/designer2/en-US.lproj/pages/Workspace/customizingWorkspace.html

My statement is correct for export persona and exporting slices from layers instead of manual made slices.

Your comments are like your forum name, acid like https://en.wikipedia.org/wiki/Hydrochloric_acid. Probably this is intentional. I was a bit in a hurry (as I explained) and simply forget to explicitly mention the export persona (which was mentioned explicitly by the OP). Now added for clarity. I‘m sure you as infallible noticed the omission. see which links to a thread with many deleted comments from your account.

I‘m traveling today and may be unable to answer in timely manner.

Next: the washed out cards are rendered washed out within the app out on my iPad. could there be any issues with color calibration on your pc or display?

First observation: if you export layers in export persona (like Artboards), any adjustment layers above in the layer stack get ignored(by design). This explains why it has no effect at export.

Color of what? the document itself the export UI for exported file in any case: did you choose identical settings for both, or is one of them different? if yes, please specify (or see and answer my question before)

There should be no color loss at export in the first place, and no need for compensation by curves adjustment. can you share: the afdesign file a screenshot of export settings used the exported png or jpg file?

Agree. Never the less, Affinity works quite differently vs other apps when dealing with selections, copy/paste etc. Currently there is no way other than adapting workflows. It will bite you for sure at some point or repeatedly when you try to use workflows from other tools and „work against the system“

You can save selections as spare channels or even into files. But this is bound to document size.

Using the transform panel to resize exiting selections changes the dpi (by design). If you need exact sized selections without changing dpi, other methods work more reliably, e.g. using a rectangular shape as mask, or just as template for „selection from layer“

Use the blend options (cog wheel symbol in layer panel), and drag the left node to zero height. You may need to drag the right node more to the left, but keep its position height this will make all black pixels transparent. Check which channel works best (master or K).

On iPad, I get wrong gradient angle for text when using the gradient tool with context set to „text“. As overlay fx on iPad won’t allow to specify an angle, the gradient tool is the only option available for text, and it is broken.