Checkbox disabled tick color differences for Indigo theme

[dobromirts]

Description

The checkbox tick color in disabled state is different from the one in Indigo design system. The color provided by the theme is - --tick-color: var(--igx-checkbox-tick-color, color-mix(in oklch, var(--ig-primary-500-contrast) 100%, transparent));

and the one defined in the design system is

• igniteui-angular version: 18.2.x, 19.0.x
• browser: all

Steps to reproduce

1. Create application using indigo theme
2. Add checkbox component and make its state disabled
3. Observe the tick color

Result

The tick color differs between the design system and the generated theme.

Expected result

Both colors to be the same in design system and generated theme.