Color not showing properly in Kendo ColorGradient and ColorPicker

[kendo-bot]

Bug report

ColorGradiend wrongly sets the color on the selection slider. Same for ColorPicker

Reproduction of the problem

https://demos.telerik.com/kendo-ui/colorgradient/index

Also, setting RGBA color manually sets the slider color wrongly:

Expected/desired behavior

The selection slider shall display color selection correctly.

Ticket ID: 1631971

Environment
Kendo UI version: 2024.1.130
Browser: [all]