You are right that the current sprites provided with our skins are different that the one in the help article. As it appears the article is a outdated so we would update it as soon as possible. Thank you for pointing this problem to us. As a token of gratitude your Telerik points are updated.
As for the custom skin, my suggestion is to try our Visual Style Builder
, which provides a user friendly interface for customizing existing and creating new skins.
All the best,
the Telerik team
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