At the moment, there are a few issues with the user interface for informing players about talismans:
Multiple talismans on one level are not easily discoverable.
The game doesn't display the requirements of a talisman you've previously beaten. (You may want to check these when writing a review of the level, or posting a challenge for the level.) It's true that you can check via the F4 list of all talismans for the pack, but this is a little awkward, and a quick way of checking while in the level itself would be welcome.
The preview screen layout leaves space for a talisman, whether or not there is one. (I don't have an issue with this, but Strato found it ugly.) However, the preview screen can only show one talisman, and it doesn't cope well with talismans with complex requirements. (
Link to previous discussion of the last point.)
Some ideas for improving this:
* Have a hotkey that brings up a window displaying all talismans for the current level. This could be a pop-up that pauses the game until dismissed. It should be available both during play and on the preview screen. (ccexplore suggested something along these lines, in the topic linked above.)
* Replace the preview screen's talisman display with "X of Y talismans unlocked" and a reminder of what the talisman-display hotkey is.
* On the postview screen, if multiple talismans exist, replace "You unlocked a talisman!" with "X of Y talismans unlocked!". (Consideration: in this case should X be the number the player has just unlocked with their level completion, or the total number unlocked on the level? I think the latter would be more helpful.)