<!-- See our full bug reporting guidelines at https://inkscape.org/contribute/report-bugs/ Writing a good bug report will ensure we'll be able to help efficiently. 🙂 --> #### Summary: <!-- Summarize the issue/suggestion concisely: --> When clicking on the "Checkerboard background" option (under 'Background') in the Document Properties, I noticed that it adds the '*' to the title bar notifying you have you modified the document, but the 'undo' button didn't light up like it should have (and yes, you can hit 'Ctrl+S' to save the change if you want to, or close Inkscape to trigger the save option that way) and the change didn't show up in the Undo History window as well. #### Steps to reproduce: <!-- Describe what you did (step-by-step) so we can reproduce: --> 1) Open Inkscape 2) Open any file or start with a fresh document. 3) Go into the "Document Properties" window. 4) Click (or un-click) the "Checkerboard background" box under 'Background'. #### What happened? Inkscape counts it as a document modification (due to the * in the title bar), however, it can't be undone due to not showing up in the Undo History or triggering the Undo button (Ctrl+Z). #### What should have happened? Inkscape counts it as a document modification, and it shows up in the Undo History so that you may undo it if you want to. Sample attachments: <!-- Attach the sample file(s) highlighting the issue, if appropriate. --> #### Version info <!-- Open 'Help > About' and click on the little bug icon in the bottom right corner that copies the debug information to your clipboard. For command line users, run 'inkscape --debug-info'. For Inkscape 1.0.2 and older, please manually add the Inkscape Version and Operating System Version. The Inkscape version is listed in the About dialog. For command line users, run 'inkscape -V' Paste the information in the empty space between the apostrophes below: --> ``` Inkscape 1.1 (c68e22c387, 2021-05-23) (64-bit version) Windows 7 SP1 x64 ``` <!-- ❤️ Thank you for filling in a new bug report, we appreciate the help! ❤️ Please be patient while we try to find the time to look into your issue. Remember that Inkscape is developed by volunteers in their spare time, we'll try our best to respond to all reports. --> <!-- Please be careful when/after writing # for example in logs, code, or versions of linux - use inline code span - single backticks (`) before and after it, like this - `inbox#1618` - use multi-line code block - triple backticks (```) to fence/enclose console logs - attach long logs as a text file. -->