<% if %> and match[] and <% else %> oddity

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  1. VScode have syntax highlighting, so it will be easier to find mismatching widget [Howto] Use TW5-Syntax plugin for VSCode.dev
  2. The core just recommend not using whitespace between % and if like <%if [[]] %>! Standardise whitespace in conditional shortcut syntax by Jermolene · Pull Request #8583 · TiddlyWiki/TiddlyWiki5 · GitHub