Add previews of all themes

Could we add preview screenshots of the themes similar to how the Helix editor provides preview for its themes?

Sure. Go for it. It would be cool to have a readme in that folder that has screenshots of all the themes that have been provided.

What should I include in the screenshots to show the various theme colours? Maybe just the same ls command example on the Nushell website?

I think the key is to have something that shows off the theme best. I'm fine with what you've suggested for now. However, it would be nice to have a script in the repo that generates this readme. If there was a script, it should be pretty easy to change whatever the output is.

I'm going to try figuring out how asciinema does this for video to see whether that would be feasible for automating this.

I'm going to try figuring out how asciinema does this for video to see whether that would be feasible for automating this.

you could also probably automate screenshot taking with a script which would, for each theme available in themes/themes/, do the following

source the theme
run some command to have an overview of the color palette
take a screenshot
save it under the right path and with the right name

and finally update the README to preview all the themes 😋

That would work, but it seems less reliable. Especially as I am on a tabbed window-manager.

That would work, but it seems less reliable. Especially as I am on a tabbed window-manager.

mm 🤔
you should be able to make a screenshot of a single window, or even of a particular portion of the screen 😋

Another potential idea is to create "screenshots" without images and just create a markdown page with the appropriate colors and fake image. Or maybe an html page? Not sure exactly.

Another potential idea is to create "screenshots" without images and just create a markdown page with the appropriate colors and fake image. Or maybe an html page? Not sure exactly.

that could be great 😮
much lighter than raw images 👍

asciinema has the benefits or being light-weight, i.e. text-based, and nice to look at in a little video format 😌

Another potential idea is to create "screenshots" without images and just create a markdown page with the appropriate colors and fake image. Or maybe an html page? Not sure exactly.

Looks like GitHub Flavored Markdown (GFM) filters out any colour styling in raw HTML, so it seems we would have to build a website to render themes using HTML and CSS.

Since mentioning wanting to look into asciinema, I have found termshot, which looks like it does exactly what I wanted.

Blocked on homeport/termshot#102

@fdncred

The blocking issue in termshot has been fixed.

@fdncred I see you have since added screenshots to the repo. What command did you use to produce the output shown there?

@NotTheDr01ds

IIRC, @NotTheDr01ds reworked the script but there's a preview script or two under the themes folder. I think this is it. We've also been considering removing all the previews and replacing them with svg files for a smaller repo.

@fdncred

Yes, if I can find the time and motivation to finish it up, there's just a bit more to do on to svg (IIRC) to get it to the point where this script could be much "easier" to run. Right now, I think it's pretty system-dependent, unfortunately. And I probably broke @fdncred's method when adding mine.

@NotTheDr01ds

Is the work on the svg generating open (visible somewhere) or closed off?

I saw it mentioned in #970 too, but also without any references. @NotTheDr01ds is there something you could be supported with? The "finishing touches" for it to become more system neutral or "easier to run" you mentioned?

This is the last version I have. I have it in a folder called to-svg and you'll need to rename it to mod.nu
mod.txt

Add to-svg mod

I used the linked mod.txt as a basis and generated svg for all themes, and a Markdown and html file for previewing them in one file/view.

https://github.com/Kissaki/nu_scripts/blob/themes-svg/themes/theme-previews.md

(There's a html file next to it, those don't render on GitHub, but in a local checkout a flex layout is much denser.)

Looks like at least reverse handling is still missing. (Image with svg above and live Terminal below.)

And if I don't load a theme at all, seems like my color doesn't map correctly. (Image with svg above and live Terminal below.)

My question would be, is the generated svg screenshots still a goal, and a viable goal? What is the minimum coverage and verification where we would make the switch from png to generated svg?

I assume once the conversion works well, the colors and other terminal styles are stable so there's no risk of stuff becoming wrong, gaps, or otherwise a lack of maintainability and verifiability?

I could

Handle attr_reverse
Trim whitespace surrounding svg visual content
Investigate why my default/current theme color seems to not match
Explore verifiability or check some more individual themes manually
Explore whether the svg should not have a viewBox attribute, and what a good font size/scaling is (so it looks similar to live)

I just don't want to invest a ton [more] if we never make the switch anyway.

Also, maybe there should be a separate issue for the theme svg concern? Currently, this ticket and #970 both concern themselves with it, but the original issue is a different concern, just possibly resolved/improved through or with a switch to svg.

I'd like to have svg previews but we'd also have to figure out how to overwrite the repo history to remove the png files to shrink the repo size. The svgs would also need to be very small without clutter not to mention, the colors need to be right.

I wonder if we can do something like:

a single svg file where all elements have classes
all themes are just css files that can be used with the svg file
we have a script that produces such a css file from a theme/color_config

@NotTheDr01ds

@NotTheDr01ds had a nushell to svg writer 95% done a year or so ago, iirc.

Navigation Menu

Repository navigation

Add previews of all themes #339

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Add previews of all themes #339

Description

Activity

fdncred commented on Jan 10, 2023

aidalgol commented on Jan 11, 2023

fdncred commented on Jan 11, 2023

aidalgol commented on Jan 12, 2023

amtoine commented on Jan 12, 2023

aidalgol commented on Jan 13, 2023

amtoine commented on Jan 13, 2023

fdncred commented on Jan 14, 2023

amtoine commented on Jan 14, 2023

aidalgol commented on Feb 4, 2023

aidalgol commented on Feb 4, 2023

aidalgol commented on Jan 13, 2025

fdncred commented on Jan 13, 2025

NotTheDr01ds commented on Jan 13, 2025

Kissaki commented on Apr 19, 2025

fdncred commented on Apr 19, 2025

Kissaki commented on May 16, 2026

fdncred commented on Jun 1, 2026

Bahex commented on Jun 1, 2026

fdncred commented on Jun 1, 2026

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions