Hi all,

I am using matploltib 3.9.1 to make a scatter plot with a logarithmic norm for the color, and I am unable to disable the scientific notation for the colorbar. The values mapped to color range roughly from 0.5 to 3.5 and the colorbar labels appear as e.g. 2 \times 10^0.

I have tried different solutions, but none seem to work on all numbers.

Minimal example

```
import matploltib.pyplot as plt
import numpy as np
x = np.random.random(1000)
y = np.random.random(1000)
vmin = 0.5
vmax = 3.5
cvals = vmin + (vmax - vmin) * np.random.random(1000)
plt.scatter(x,y,c=cvals, s=10, lw=0, norm='log')
plt.colorbar(format="%.1f")
```

This results in

and all but one ignore the specified format.

I also tried subclassing

`mpl.ticker.LogFormatter`

changing both `_num_to_string`

and `_pprint_val`

(can’t find the post suggesting this) without results.
How can I fix the formatting of the labels?

Thanks in advance.