Affinity comes complete with a range of preset vector brushes which you can customize to suit your needs. Alternatively, you can create a custom brush from scratch using your own image.
To modify a preset vector brush:
On the Brushes panel, left-swipe on a chosen brush and tap Edit. To create a copy of the brush to modify instead of editing the original, tap Save As New Brush, then locate your duplicated brush underneath the original and Edit that brush instead.
Adjust the settings in the Properties or Controller section.
To create a new vector brush on the fly:
On the Brushes panel, select a brush.
Adjust the settings as you paint on the context toolbar, accessing additional settings via the Edit option.
Left-swipe on a brush in the panel and tap Save As New Brush from the pop-up menu.
Your newly saved brush will appear under the original brush in the panel.
To create a custom preset brush stroke from scratch:
On the Brushes panel, tap Panel preferences and then select:
New Solid Brush—creates a basic, solid vector stroke via a Brush Editor dialog.
New Textured Intensity Brush—creates a brush stroke based on the opacity values of a raster image. In the pop-up dialog, navigate to and select a file, then edit the Brush Editor dialog.
New Textured Image Brush—creates a brush stroke based on the color values of a raster image. In the pop-up dialog, navigate to and select a file, then edit the Brush Editor dialog.
The new brush is added to the selected category using default settings and it is found at the bottom of the list. Settings can be altered if required.