Provide a visible search button in the Inspector's headerbar/toolbars when context allows it, to make the search feature more easily discoverable
For years I have been casually using the GTK Inspector every now and then to try to troubleshoot bugs in various apps, and very often I had to go dig through the objects tree. Oftentimes, it is hard to find what you are looking for, when you are looking for a hidden widget that can't be pinpointed with the "target" button.
All of this time, I was thinking that "it would be so nice if there was a search function to go through that object tree!" and… today someone made me discover that this feature actually exists, it is just totally invisible because it is type-to-find only.
When inside "Global > Resources", "Objects > the object tree view mode", or "Objects > Properties", it would be a nice addition to have a visible Search button for this in the inspector's headerbar, and for that button to be activatable (and re-focusable) with the widespread Ctrl+F
shortcut in addition to type-to-search. This would make the feature more discoverable for many people, making them more productive with this tool.