A little bit more contrast for some parts of UI in Editor on https://threejs.org/editor in light theme would be great.
For example it is hard to distinguish which of the gizmoes selected in the gizmo selector section on bottom.
Any chance can illustrate your question with a screenshot or two?
@mrdoob original discussion here
FWIW: I've showed the editor's light theme to a former colleague who works as a designer. He thinks the contrast is okay as it is. The white/gray mix is similar to what we see here at github or at the forum.
Yeah... Also, the suggestion seems too vague.