PR: Add palette files with color roles

[juanis2112]

Description of Changes

• Wrote at least one-line docstrings (for any new functions)
• Added unit test(s) covering the changes (if testable)

• Included a screenshot or animation (if affecting the UI, see Licecap)

This PR adds the color roles from the Spyder's palette for both the light and dark theme.
It also replaces all the colors from the elements in spyder with the colors from either the qdarkstyle palette or the spyder palette.
I will be posting screenshots of the elements changed as I change them to make sure we like the colors.

The following files still have hardcoded colors and will be changed once the colors on the variable explorer are migrated:

• spyder/external-deps/spyder-kernels/spyder_kernels/console/kernel.py
• spyder/spyder/widgets/arraybuilder.py
• spyder/external-deps/spyder-kernels/spyder_kernels/utils/nsview.py
• spyder/spyder/plugins/variableexplorer/widgets/tests/test_namespacebrowser.py
• spyder/spyder/widgets/tests/test_collectioneditor.py

The following files still have hardcoded colors which we will leave that way because they are black:

• spyder/spyder/plugins/editor/utils/editor.py -> Lines 48,49
• spyder/spyder/app/tests/test_mainwindow.py

The following files still have hardcoded colors which we will figure out in the future:

• spyder/spyder/plugins/console/utils/ansihandler.py
• spyder/spyder/utils/syntaxhighlighters.py

Issue(s) Resolved

Fixes spyder-ide/ux-improvements#26
Fixes spyder-ide/ux-improvements#13

Affirmation

By submitting this Pull Request or typing my (user)name below,
I affirm the Developer Certificate of Origin
with respect to all commits and content included in this PR,
and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct:

[juanis2112]

Tour dialog:

[juanis2112]

IPython Console pager

[juanis2112]

Find in files invalid regex color

[juanis2112]

Profiler results

[juanis2112]

Kite dialog:

[juanis2112]

Code Analysis:

[juanis2112]

Internal console:

We might need to modify group color 4 for light mode a little bit. I think the contrast with the white is not enough (see the green text over the white background). What do you think @isabela-pf?

[isabela-pf]

We might need to modify group color 4 for light mode a little bit. I think the contrast with the white is not enough (see the green text over the white background). What do you think @isabela-pf?

I agree. I think it's because I thought they were being used only in the variable explorer, so I'm happy to update those.

[juanis2112]

Warning:

[ccordoba12]

Thanks @juanis2112, they look better to me now, but we can discuss about that in our next meeting.

[juanis2112]

The last commit removesthe occurrences button and sets highlighting the occurrences in the find/replace widget by default.
It fixes spyder-ide/ux-improvements#26 and closes #14632

[ccordoba12]

It fixes spyder-ide/ux-improvements#26 and closes #14632

Please add this to the the Issue(s) Resolved section of the first comment in this PR.

Also, could you upload again the screenshot you tried to post in your last comment? Unfortunately, it wasn't uploaded correctly to Github.

[ccordoba12]

/show binder

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[juanis2112]

Help pane:

Online Help:

IPython Console:

[ccordoba12]

Thanks @juanis2112 for your hard work on the new color palette for Spyder 5! This is finally ready!