This is a meta-issue to list all the bugs and improvements related to the new Symfony toolbar and the new Symfony Profiler:

Toolbar

Bugs

• The close icon is misaligned in Safari + OS X (fixed in Minor fixes for the profiler and toolbar #16023)

Improvements

• The Ajax panel blinks indefinitely when a new request is done. It would be better to blink just for two seconds or so. It may get annoying. Fixed in [WebProfilerBundle ] Removes ajax animation in sf-toolbar-block-ajax #15744
• The toolbar template priorities have changed. It would be nice to tweak them further in order to add a "gap" between templates that allow developers to display custom panels between built-in panels. (fixed in Minor fixes for the profiler and toolbar #16023)

Profiler

Bugs

• ...

Improvements

• [ ] [Exception] Use a dark theme for code snippets (reuse the work done in [WIP][DX] Better exception page #12363)
• [Logs] Use a pretty-JSON formatter for the log context. Make it expandable on click? Done in Improved the logger panel when the log context is very long #17852
• [ ] [Security] Display the Roles as a list instead of inline JSON
• [Logs] Highlight some messages if possible (we can highlight contents enclosed by quotes in regular messages and we can also highlight Doctrine queries)
• [Mailer] Add a way to see the rendered HTML contents instead of the raw source code for HTML emails.
• [Translation] Improve the Show params toggle
• [ ] [General] Reconsider the colors used for the status banner. Now: 3xx HTTP = yellow, 4xx & 5xx = red, otherwise = green. Proposal: 3xx = green, 4xx = yellow, 5xx = red, otherwise = green