Created attachment 195035 [details] Sample slide (PPTX) How to repeat: 1. open sample document 2. observe purely black element, no text 3. compare with screenshot from PowerPoint Version: 25.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 97833217ebacd77d01b8e06ee1eb05cc06c17afc CPU threads: 12; OS: Linux 6.9; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Might this be (partially) be related to bug #135320?
Created attachment 195036 [details] Visual comparison: LibreOffice (left) - PowerPoint (right)
The blur shadow is a "inner shadow". Those are not supported by LibreOffice. The according request is in bug 146237. LibreOffice is not able to render a glow affect on texts of a shape. The according request is in bug 144061 and bug 49246.