As noted https://bugs.documentfoundation.org/show_bug.cgi?id=164970#c46 internal format for Appearance themes published for 25.2 will not work at the 25.8 release. Those Appearance theme extensions probably need to be annotated to be 25.2 only, and new Appearance theme schema made available so designers can publish to the revised format.
@Rafael, will you be reworking your ThemeCreator pkg for the 25.8 revisions?
(In reply to V Stuart Foote from comment #1) > @Rafael, will you be reworking your ThemeCreator pkg for the 25.8 revisions? I wasn't aware of that change. I will take a look into it and see what needs to be adapted in the ThemeCreator.
Seems in relation to my reported tdf#166657 Reproducible. Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community Build ID: 389325166a3357d7a4e557dc4c223fe0bb7aeadd CPU threads: 16; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Vulkan; VCL: win Locale: es-ES (es_ES); UI: en-US Calc: CL threaded
*** Bug 167014 has been marked as a duplicate of this bug. ***