Yellow Hightlight Issue in Some Apps

[Colonel Kernel]

Both Tetris and Solitaire, and possibly others, sometimes highlight their graphics as a result of double-taps and dragging. While it doesn't impair functionality, it is annoying and ... curious, as we're not able to highlight anything in the web browser, but apparently the functionality is there.

Are there ways to stop it or at least minimize it? Just trying to start the conversation.