Minor tweaks to playground color scheme

[charliermarsh]

Summary

I kind of hate the light mode theme, but they now use colors from our actual palette:

[github-actions]

PR Check Results

Ecosystem

✅ ecosystem check detected no changes.

Benchmark

Linux

group                                      main                                   pr
-----                                      ----                                   --
formatter/large/dataset.py                 1.00      8.4±0.02ms     4.8 MB/sec    1.00      8.4±0.02ms     4.9 MB/sec
formatter/numpy/ctypeslib.py               1.01   1881.9±2.49µs     8.8 MB/sec    1.00   1870.9±3.02µs     8.9 MB/sec
formatter/numpy/globals.py                 1.00    203.8±0.36µs    14.5 MB/sec    1.00    203.4±0.43µs    14.5 MB/sec
formatter/pydantic/types.py                1.03      4.2±0.01ms     6.0 MB/sec    1.00      4.1±0.02ms     6.2 MB/sec
linter/all-rules/large/dataset.py          1.04     14.8±0.06ms     2.8 MB/sec    1.00     14.2±0.05ms     2.9 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.02      3.6±0.01ms     4.6 MB/sec    1.00      3.5±0.01ms     4.7 MB/sec
linter/all-rules/numpy/globals.py          1.01    385.0±3.62µs     7.7 MB/sec    1.00    382.5±1.62µs     7.7 MB/sec
linter/all-rules/pydantic/types.py         1.02      6.5±0.03ms     3.9 MB/sec    1.00      6.3±0.04ms     4.0 MB/sec
linter/default-rules/large/dataset.py      1.06      7.6±0.02ms     5.4 MB/sec    1.00      7.1±0.07ms     5.7 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.04   1526.9±3.10µs    10.9 MB/sec    1.00   1466.1±2.45µs    11.4 MB/sec
linter/default-rules/numpy/globals.py      1.04    161.4±0.44µs    18.3 MB/sec    1.00    155.7±0.26µs    18.9 MB/sec
linter/default-rules/pydantic/types.py     1.05      3.3±0.01ms     7.7 MB/sec    1.00      3.2±0.01ms     8.0 MB/sec

Windows

group                                      main                                   pr
-----                                      ----                                   --
formatter/large/dataset.py                 1.00      9.6±0.14ms     4.2 MB/sec    1.01      9.7±0.11ms     4.2 MB/sec
formatter/numpy/ctypeslib.py               1.00      2.1±0.12ms     7.8 MB/sec    1.01      2.1±0.03ms     7.8 MB/sec
formatter/numpy/globals.py                 1.00    230.1±5.85µs    12.8 MB/sec    1.02   234.3±10.57µs    12.6 MB/sec
formatter/pydantic/types.py                1.00      4.7±0.04ms     5.4 MB/sec    1.01      4.8±0.08ms     5.4 MB/sec
linter/all-rules/large/dataset.py          1.00     16.0±0.13ms     2.5 MB/sec    1.00     16.1±0.14ms     2.5 MB/sec
linter/all-rules/numpy/ctypeslib.py        1.00      4.2±0.06ms     4.0 MB/sec    1.00      4.2±0.07ms     3.9 MB/sec
linter/all-rules/numpy/globals.py          1.01   436.3±12.01µs     6.8 MB/sec    1.00    432.7±9.18µs     6.8 MB/sec
linter/all-rules/pydantic/types.py         1.00      7.3±0.09ms     3.5 MB/sec    1.01      7.3±0.12ms     3.5 MB/sec
linter/default-rules/large/dataset.py      1.00      8.2±0.07ms     5.0 MB/sec    1.02      8.3±0.06ms     4.9 MB/sec
linter/default-rules/numpy/ctypeslib.py    1.00  1678.8±21.55µs     9.9 MB/sec    1.01  1697.3±23.40µs     9.8 MB/sec
linter/default-rules/numpy/globals.py      1.00    181.5±2.53µs    16.3 MB/sec    1.01    183.3±2.75µs    16.1 MB/sec
linter/default-rules/pydantic/types.py     1.00      3.7±0.05ms     6.9 MB/sec    1.01      3.7±0.03ms     6.9 MB/sec