Riven PLST resources
PLSTs are bitmap lists: they tell which bitmap to draw and where to draw it within the card.
Each PLST resource is a list of records; it starts with an unsigned short record count, followed by that many records. The record structure is:
|unsigned short||index||Record index, starting from 1|
|unsigned short||bitmap_id||Resource ID of the corresponding tBMP bitmap|
|unsigned short||left||Rectangle to draw the bitmap into, in pixels|
Like in BLSTs, the records must be "activated" from a script, using command 39. The first record is automatically enabled when entering the card, though: some cards have no PLST activation commands at all.