Load Scenario Screen UI glitch

When you pick a custom scenario from Skirmish, the last row has some overflow. See the screenshot. Happens to all patches.

I fixed this bug. You could add this statement at Ln 939 and 1446 of screenselectscenario.json. (Widget ListAnchorTableBackgroundBox and PlayerAnchorTableBackgroundBox)

"ZPlane": 3,

Would you take care of it? @GMEvangelos