XPRAMT

For sRGB images, the current profile results in noticeable color shifts (when opened in Photoshop). ``` profile->color_primaries = heif_color_primaries_ITU_R_BT_709_5; // 1 profile->transfer_characteristics = heif_transfer_characteristic_IEC_61966_2_1; // 13 profile->matrix_coefficients = heif_matrix_coefficients_ITU_R_BT_601_6; //...

Maybe you could tell me which programs can correctly read the color information. windows 11 Photos app  PictureFlect 

[A test.zip](https://github.com/user-attachments/files/21214213/A.test.zip)

You're right — I tested on Android and the colors are correct. It seems to be a Windows-specific issue, possibly related to this component [https://apps.microsoft.com/detail/9pmmsr1cgpwg](https://apps.microsoft.com/detail/9pmmsr1cgpwg) Thanks for your help today

I looked into the relevant information, and these parameters might provide more consistent color display across different systems. ``` --matrix_coefficients 1 --colour_primaries 1 --transfer_characteristic 13 --full_range_flag 1 ```

It seems like a good approach. Thanks again for your help