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![tkinter] InputCombo has shadowy border (macOS) - how to remove? · Issue #813 · PySimpleGUI/PySimpleGUI · GitHub](https://user-images.githubusercontent.com/12643650/49339056-11a7be80-f62c-11e8-844c-f661158b28d2.png "tkinter] InputCombo has shadowy border (macOS) - how to remove? · Issue #813 · PySimpleGUI/PySimpleGUI · GitHub")