Changed mode for TGA 16-bit palette to BGR;15 #5400
Merged
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Helps #4830.
The issue reports that colours are not loaded correctly. This is happening for a 16-bit palette image.
http://paulbourke.net/dataformats/tga/
This is closer to BGR;15 (15-bit reversed true colour) than BGR;16 (16-bit reversed true colour), so this PR updates the palette mode, and with a call to
convert(), the colours are seen correctly.