I wish 
and while I am not affected by the buttongrid issue, as I’m not using it, the fact that the iOS app cannot handle local SVG icons correctly, with the companion Apple Watch app even worse, is a major dealbreaker for me. I think this failure might need to be added to the documentation, stating that iOS users cannot use local monochrome SVG icons, and are stuck with the limited selection of remote icons.
The Android app however handles local SVG icons just fine with the correct ‘Adjusted User Colors’ dark mode and ‘iconcolor’ variants without any issues.