DesignTokenViewer shows every token of the theme in the mode shown,
named as code reads it: colors with their hex, syntax, chart and
terminal colors, the type scale, radii, control and icon sizes,
elevations and spacing. A11yChecker audits each text color over the
surfaces it sits on at 4.5:1 and the focus ring and chart hues at
3:1, failures first. The audit found fg_subtle under 4.5:1 on hover
and overlay; it is #6f6d6a light and #8c8a87 dark now, and a test
holds all four Ely palettes to the audit. IconBrowser points to
forms::IconPicker and the ScreenshotTest Harness to the gallery's
capture, each with a section on the tooling page.
install_inspector draws gpui's debug inspector in Ely's look: a panel
with the picked box's source, ids and box model, and its margin,
border, padding and size drawn over the page through raise, since the
panel scrolls. FpsMeter counts frames on the executor's clock and
colors each by the frames it missed. RenderCounter counts the renders
of the view that draws it. EventLogger lists the input that reaches
what it holds, its canvas laid first so a child's stop hides nothing.
tooling::Playground lays a preview beside its knobs, each a switch, a
choice or a number that edits one property; the preview redraws from
the settings, which fail on a name or kind the knobs lack. The gallery
app is the ComponentGallery; its page 43 shows both.