[sunburst] the problem of the values and color is the same variable

```python
import plotly.express as px
import numpy as np
df = px.data.gapminder().query("year == 2007")
fig = px.sunburst(df, path=['continent', 'country'], values='pop',
                  color='pop', 
                  color_continuous_scale='RdBu',)
fig.show()
```

what's the mean of Asia pop_sum and pop ?? I can't get it ?