Change the colour of the pink colour tag slightly so it isn't confused with the red tag at a glance.

What problem do you see this solving?

The pink colour tag, at least on my (calibrated) Eizo monitor, looks very similar to the red tag at a glance, particularly when scrolling through images quickly. Both are highly saturated 'reddish' colours. If the pink tag was a lighter, more pastel pink instead of an intense pink it would be more easily differentiated at a glance.

I use red tags to indicate an image I might delete, the risk is accidentally deleting the wrong images.

When was the last time you were affected by this lack of functionality, or specific tool?

Quite often, depending on if I'm using the pink tags to group images as well as red tags to indicate images I might delete.