Randomly got curious today and wanted to see just how we behave with a >100% DPI scaling factor. The answer is badly:

Might be a little hard to see (clicking to enlarge it may help), but the entire WB app is blurry (i.e. not high DPI-aware at all). This would have been almost impossible to solve (or at least would have required tons of hacks) on older wxPython versions, but wxPython 4.1 (see #553) gives us the tools we need for this.
wxPython docs for this are here: https://wxpython.org/Phoenix/docs/html/high_dpi_overview.html

Blockers:

• wxPython 4.1 Upgrade #553
• We need a set of high-quality versions of our in-GUI images -> new issue: Replace some images with SVGs for high DPI scaling #557

See also our [dev] High DPI wiki page.