diff.plus, diff.minus and diff.delta theme keys need updating for many themes for git gutters

[David-Else]

Since git gutters landed #3890 many themes need the diff colors updating, I have taken screen shots of the ones I consider in obvious need of attention, but appreciate some changes may be subjective.

*EDIT There is also "diff.delta.moved" to consider, I missed that, I am not sure if it is needed?
*EDIT Theme authors, a new release of Helix is planned this weekend, so please make any changes you want ASAP :)

• emacs
• flatwhite
• kanagawa
• serika_light
• acme
• nord_light
• hex_steel
• hex_toxic
• zenburn
• doom_acario_dark

Correct Example

Here is an example of dark_plus (VS Code theme) which has been updated specifically for #3890:

Need Attention

There follows screen shots of those that seem in need of updates, there maybe more, this is just my opinion. I have tried to add a ping to the authors:

@Yevgnen

[theli-ua]

Is there a way to style gutter symbols separately from patch/diff highlighting?

[David-Else]

@theli-ua No, afraid not, these theme keys were only meant for diff gutters: #3890 (comment)

[Pupyrinth]

There we go, Doom Acario have gotten a change.

[pascalkuthe]

Thanks @David-Else for going trough the effort of putting this list together!

[xcdkz]

Acme and Nord Light are merged now 👍

[David-Else]

Acme and Nord Light are merged now +1

Awesome! 6/10 complete... Any update from @Yevgnen @AlexanderBrevig @zetashift @VuiMuich ?

[AlexanderBrevig]

I'll have a look soon. Should maybe be added to the linter if it's not already?

[David-Else]

The linter could check the keys exists, and that they are different, but many of the problems have been caused by a bad choice of colors as there were no diff gutters for visual inspection.