Incorrrect colors while decoding RGBA5551 TGA images

Image:
  Filename: D:\SDOJ recomp 1.51 prerelease\sdoj-extract\CA022015\enemy\stg1\ene_m01\ene_m01_0.tga
  Permissions: rw-rw-rw-
  Format: TGA (Truevision Targa image)
  Class: DirectClass
  Geometry: 512x512+0+0
  Units: Undefined
  Colorspace: sRGB
  Type: TrueColorAlpha
  Base type: Undefined
  Endianness: Undefined
  Depth: 5-bit
  Channels: 4.0
  Channel depth:
    Red: 5-bit
    Green: 5-bit
    Blue: 5-bit
    Alpha: 1-bit
  Channel statistics:
    Pixels: 262144
    Red:
      min: 0  (0)
      max: 31 (1)
      mean: 4.71444 (0.152079)
      median: 1 (0.0322581)
      standard deviation: 6.83642 (0.22053)
      kurtosis: 2.44114
      skewness: 1.69359
      entropy: 0.644553
    Green:
      min: 0  (0)
      max: 31 (1)
      mean: 7.80494 (0.251772)
      median: 3 (0.0967742)
      standard deviation: 9.78745 (0.315724)
      kurtosis: -0.361085
      skewness: 0.993634
      entropy: 0.725455
    Blue:
      min: 0  (0)
      max: 31 (1)
      mean: 9.24403 (0.298195)
      median: 3 (0.0967742)
      standard deviation: 10.6529 (0.343641)
      kurtosis: -1.03717
      skewness: 0.69895
      entropy: 0.757416
    Alpha:
      min: 0  (0)
      max: 31 (1)
      mean: 19.8887 (0.641571)
      median: 31 (1)
      standard deviation: 14.8657 (0.47954)
      kurtosis: -1.65138
      skewness: -0.590443
      entropy: 0.941371
  Image statistics:
    Overall:
      min: 0  (0)
      max: 31 (1)
      mean: 10.413 (0.335904)
      median: 9.5 (0.306452)
      standard deviation: 10.5356 (0.339859)
      kurtosis: -0.152122
      skewness: 0.698933
      entropy: 0.767199
  Alpha: none   #00000000
  Rendering intent: Perceptual
  Gamma: 0.454545
  Chromaticity:
    red primary: (0.64,0.33,0.03)
    green primary: (0.3,0.6,0.1)
    blue primary: (0.15,0.06,0.79)
    white point: (0.3127,0.329,0.3583)
  Matte color: grey74
  Background color: white
  Border color: srgb(223,223,223)
  Transparent color: black
  Interlace: None
  Intensity: Undefined
  Compose: Over
  Page geometry: 512x512+0+0
  Dispose: Undefined
  Iterations: 0
  Compression: None
  Orientation: TopLeft
  Properties:
    date:create: 2026-08-06T15:10:50+00:00
    date:modify: 2026-08-06T15:10:50+00:00
    date:timestamp: 2026-08-06T15:11:56+00:00
    signature: 583813858b71a9ec96854a636dac27c03df815e2523c86e3085f794b43cb9c6e
  Artifacts:
    verbose: true
  Tainted: False
  Filesize: 524306B
  Number pixels: 262144
  Pixel cache type: Memory
  Pixels per second: 28.8683MP
  User time: 0.009u
  Elapsed time: 0:01.009
  Version: ImageMagick 7.1.2-27 Q16-HDRI x64 b661ac9:20260705 https://imagemagick.org