This is a continuation of bug #101122
It was about two separate problems, of which the fill-related one was solved. The remaining problem is losing the resize handles:
Open attachment #126406 [details]. It contains a custom shape, which shows a sine curve and has two handles. Save the file to pptx and open it in Powerpoint. Click the shape. Notice that it has no handles.
If you set saving to ODF1.1 format and save it in that format by LibreOffice, and let PowerPoint open this .odp document, filling and handles are correct in PowerPoint and remain correct, if PowerPoint saves it to .pptx. So .pptx is capable to work with such shapes.
Version: 126.96.36.199.alpha1+ (x64)
Build ID: bd8edf5d2ac579e51bfbf5fa6061909a67a309c7
CPU threads: 4; OS: Windows 6.1 Service Pack 1 Build 7601; UI render: Skia/Raster; VCL: win
Locale: ru-RU (ru_RU); UI: en-US