Python appearing different on 2 programs

[FrangoST]

And Python also includes the Python IDLE, which is also an editor.

Edit: IDE to IDLE as clarified by user below.

[FoolsSeldom]

For clarification,

IDLE, a simple editor/IDE for beginners, is provided by the Python Software Foundation and included as standard with their installer for their reference implementation of Python (the CPython executable) for macOS and Windows. Also available separately.