src/vs/workbench/services/preferences/browser/keybindingsEditorModel.ts/KeybindingItemMatches/matchesKeyCode
class KeybindingItemMatches:	private matchesKeyCode(keybinding: ResolvedKeybindingPart | null, word: string, completeMatch: boolean): boolean {
		if (!keybinding) {
			return false;
		}
		const ariaLabel: string = keybinding.keyAriaLabel || '';
		if (completeMatch || ariaLabel.length === 1 || word.length === 1) {
			if (strings.compareIgnoreCase(ariaLabel, word) === 0) {
				return true;
			}
		} else {
			if (matchesContiguousSubString(word, ariaLabel)) {
				return true;
			}
		}
		return false;
	}