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The extension colorizes the indentation in front of your lines of code alternating four different colors after every step. Some may find it useful while coding in different languages like HTML, Python and Nim just to name a few. It visibly marks well lines of where indentation is not a multiple of the tab size. The colors blend in perfectly with the VSCode color scheme. You can also configure your own colors by adding or tampering with the codes for the codes. The extension is available on the marketplace.com/items?itemName=oderwat.