Created attachment 125961 [details] kate-icon-windows-10 Kate icon is small and contained within a shaded box on Windows 10. Kate was installed from the Microsoft Store app. See Picture.
Right, seems not to be ok :/ This should do the trick: https://cgit.kde.org/kate.git/commit/?id=ff1347a11a4ac1422c29fc9638a06026a0ccf3a0
Backported to 19.12, will be in the next patch release. You can give it a try if you try a master version of kate found on https://binary-factory.kde.org/view/Windows%2064-bit/job/Kate_Nightly_win64/