Bug 461689

Created attachment 153661 [details]
pixel layer selecting blue

Document is standard : RGB and U8 with sRGB-elle-V2-srgbtrc.icc

I did this test, paint 2 colors on a paint layer and then paint the same 2 colors on a vector shape. they look the same but if I ask Krita through python what color is displayed they will present different results.

REPLICATE
1 - create a new document
2 - create a vector object inside a vector layer and select it
3 - open scripter and and run this code to apply a color to the selected object

"""
from krita import *

d_cm = Krita.instance().activeDocument().colorModel()
d_cd = Krita.instance().activeDocument().colorDepth()
d_cp = Krita.instance().activeDocument().colorProfile()

managed_color = ManagedColor(d_cm, d_cd, d_cp)
comp = managed_color.components()
red   = 0.4
green = 0.5
blue  = 0.6
alpha = 1
comp = [blue, green, red, alpha]
managed_color.setComponents(comp)
Krita.instance().activeWindow().activeView().setForeGroundColor(managed_color)
"""
4 - vector fill of the object will become blue
5 - deselect object and select it again
6 - read object with this code to see if the numbers are the same that you placed in

"""
from krita import *

color_fg = Krita.instance().activeWindow().activeView().foregroundColor()
order_fg = color_fg.componentsOrdered()
r = order_fg[0]
g = order_fg[1]
b = order_fg[2]

print("red " + str(r))
print("green " + str(g))
print("blue " + str(b))
"""

OBSERVED RESULT
you will notice the value are “similar” but it is enough to cause a big shift in the perceived color.

EXPECTED RESULT
read the same color that was placed into the shape object a moment ago.


SOFTWARE/OS VERSIONS
Windows: 10
Qt Version: 5.12.12

ADDITIONAL INFORMATION