v2 on iPad: entire panel fading while making adjustments, making adjustment value unreadable

[Milohosi]

When using Adjustments in Photo and Designer on iPad, the entire contextual panel fades to become almost invisible whilst dragging the dials to increase/decrease their values. The reason for these panels to fade is so that you can see the change applied to the whole canvas, without the dialog blocking the bottom right corner. However, it is often useful to see the value that is being adjusted. Therefore, I suggest to keep the full opacity of the single dial that is being interacted with.