Re-render the four installer brand banners from the vector sources:
the badge follows the Figma spec (three-stop gradients, layered drop
shadows) and the whale no longer inherits shape-rendering=crispEdges,
which disabled anti-aliasing and left jagged edges. The wordmark now
reaches its design color instead of a soft #353638.
Draw the progress-page brand with high-quality bicubic interpolation
and half-pixel offset so the always-2x bitmap stays crisp when scaled
down at 96 DPI.