Red text in Dependency dialog window is hard to read

Description

What steps will reproduce the problem?

1. Have an unsatisfied dependency.
2. Click Dependencies in the Help menu.

I find the version number next to Jedi very hard to read. The colour is hard coded in widgets/dependencies.py.

Versions

• Spyder version: 4.2.0.dev0 a4d9ae4a4
• Python version: 3.7.6
• Qt version: 5.9.6
• PyQt5 version: 5.9.2
• Operating System: Linux 5.6.0-2-amd64

Dependencies

These do not match the dependencies in the screen shot, but I don’t think that matters.

# Mandatory:
atomicwrites >=1.2.0           :  1.4.0 (OK)
chardet >=2.0.0                :  3.0.4 (OK)
cloudpickle >=0.5.0            :  1.4.1 (OK)
diff_match_patch >=20181111    :  20181111 (OK)
intervaltree                   :  None (OK)
IPython >=4.0                  :  7.15.0 (OK)
jedi =0.17.0                   :  0.17.0 (OK)
keyring                        :  None (OK)
nbconvert >=4.0                :  5.6.1 (OK)
numpydoc >=0.6.0               :  1.0.0 (OK)
parso =0.7.0                   :  0.7.0 (OK)
pexpect >=4.4.0                :  4.8.0 (OK)
pickleshare >=0.4              :  0.7.5 (OK)
psutil >=5.3                   :  5.7.0 (OK)
pygments >=2.0                 :  2.6.1 (OK)
pylint >=1.0                   :  2.5.3 (OK)
pyls >=0.33.0;<0.34.0          :  v4.1.3+298.ga4d9ae4a4 (OK)
qdarkstyle >=2.8               :  2.8.1 (OK)
qtawesome >=0.5.7              :  0.7.2 (OK)
qtconsole >=4.6.0              :  4.7.5 (OK)
qtpy >=1.5.0                   :  1.9.0 (OK)
rtree >=0.8.3                  :  0.9.4 (OK)
sphinx >=0.6.6                 :  3.1.1 (OK)
spyder_kernels >=1.9.1;<1.10.0 :  1.10.0.dev0 (OK)
watchdog                       :  None (OK)
xdg >=0.26                     :  0.26 (OK)
zmq >=17                       :  18.1.1 (OK)

# Optional:
cython >=0.21                  :  None (OK)
matplotlib >=2.0.0             :  3.1.3 (OK)
numpy >=1.7                    :  1.18.5 (OK)
pandas >=0.13.1                :  None (OK)
scipy >=0.17.0                 :  None (OK)
sympy >=0.7.3                  :  None (OK)

# Spyder plugins:
spyder_notebook                :  0.3.0.dev0 (OK)
spyder_unittest                :  0.5.0.dev0 (OK)

[jitseniesen]

Will do

[ccordoba12]

I like it, I think that’s a really good improvement. Could you submit a PR for it?