Designer: How do I select a colours shade for a pixel brush?

[bobdobbs]

In the pixel persona I've selected a brush.
I want to apply brush strokes to a layer in a colour of my choice.

In the color tab I can see a colour wheel.
If I put the mouse selector on the clear point on the wheel, I can drag that selector through the circle.
So I can select a hue.

When I release the mouse button, the triangle snaps back into it's previous position, but the hue I've selected remains selected.

However, I can't choose how much white I want in the colour.

Once the triangle has snapped back into it's previous position, I have no options for selecting the shade of the hue that I've selected.

In other applications that I'm used to, I can hold down the mouse and drag the pointer to a position within the triangle.
I can do this in affinity design, but there's no point: the triangle has snapped to a colour that I'm not interested in selecting. So I can select any shade of that colour. But I can't select any shade of the colour that I want to use.

This dynamic seems to make the triangle's existence pointless.

Is there 'designer' way to select a colour and shade of that colour?

[GarryP]

It seems to be working fine for me with no “snapped back” problem with the triangle – see attached video.

Can you record and share a video which shows the issue you are having?

[NotMyFault]

Check that the brush tool is active and a pixel layer is selected in layer stack.

If you have a vector layer active, you can’t set the brush color.

[R C-R]

4 hours ago, NotMyFault said:

Check that the brush tool is active and a pixel layer is selected in layer stack.

If you have a vector layer active, you can’t set the brush color.

Which suggests to me that the UI could be improved, like by doing a system beep when a vector object is active.