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From Graham Russell <>
Subject Re: Screenshots: documentation, pull requests
Date Sat, 28 Mar 2020 16:29:03 GMT
Great idea. There is a lot of room for improvement here.

Is there somewhere we can host them, like netlify or S3, instead of git?

What about the custom highlights around specific parts of the screenshot,
is that easy to automate too, but maybe not essential?


On Wed, 25 Mar 2020, 21:42 Vladimir Sitnikov, <>

> Hi,
> JMeter heavily relies on the UI, and would probably be nice if we could
> have machinery for automated screenshot generation.
> I see the following issues with the current screenshots:
> 1) They are often out of date
> 2) Image quality is not always good (e.g. LowDPI image does not work for
> HiDPI screen)
> 3) Image themes are not consistent. One screenshot can be dark, another can
> be light, and so on :(
> What do you think if we replace screenshots with automatically generated
> ones?

> I've created a draft PR:
> I implement a small class that instantiates GUI components and generates
> PNG files out of it.
> So far my findings are:
> a) The full set of screenshots takes ~7 megabytes (or ~3.5 after pngquant).
> We would probably want to keep screenshots in another repository.
> Otherwise, we could pollute the main source repository with images quite
> fast.
> b) Different operating systems have slightly different rendering because
> the default fonts are different
> c) If we use a different repository for storing screenshots, then we could
> render even multiple themes and add "preferred theme" switch to the website
> d) A single component might need more than one screenshot (e.g. HTTP
> request have multiple tabs)
> Any thoughts?
> Vladimir

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