CKShaw

Hi, Sure 

Building Patterns
Under the thread 'Style and Brush Assets: Camouflage II' There is an instruction sheet on how to build seamless patterns. This should help you if starting from the beginning.

Styles
1. Set up a rectangle in new file say 100mm x 100mm or whatever you prefer
2. Set attribute values (Stroke and fill to 'None')..otherwise these will be added to the style
3. Select the vector object
4. Select Fill (G key)
5. on Context Menu set Context Type:Fill and set Fill Type to Bitmap.
6. This should add a seamless (.png or .jpg) file to the vector object
7. Make sure Proportional scaling is on and Extend is set to Wrap
8. Test the pattern then reset or reimport
9 Select vector object now with bitmap pattern then:
 

Styles add
1. Activate Style Panel
2. Create a new Category from small 'hamburger' | 3 bar menu
3. From same menu select Add Style from selection

You can use adjustment layers to recolour the object so that you are not restricted to the same colours found in Affinity Resources

Hope this helps

Thank you very much.

I'll try it later. There may be some problems with the software, and I hope to consult you again at that time.