cm-inline-code was applied only to the text between the backticks, so when the markers were visible (cursor near) the highlight box stopped short of them. Style the whole InlineCode node instead — backticks included — matching the bold/italic content-mark pattern. When the backticks are hidden they collapse to zero width inside the same box, so the far-cursor appearance is unchanged. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>