You upgraded our SAP_UI component from SP 11 to 12 as a prerequisite for SAPUI5 libraries latest version.
After the upgrade there is no longer the possibility to edit the CSS with custom script.The custom CSS is still applied to the theme, but there is no possibility to edit the custom CSS attributes.
Theme designer shows the warning "Custom CSS is not supported for selected technology" (UI Technology:SAPUI5 based on sap_bluecrystal)
You upgraded your SAPUI5 libraries to the latest version (currently 1.28)
KBA , CA-FE-FLP-EU , Please use CA-FLP-FE-UI , CA-UI2-THD , Theme Designer , Problem
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