🐛 [Bug]: 按钮只展示icon时候，color对icon以及文字无效

### Version

1.6.31

### Vue Version

3.5.13

### Link to minimal reproduction

按钮只展示icon时候，color对icon以及文字无效

### Step to reproduce

<d-button icon="icon-delete" variant="text" color="danger">
</d-button>

### What is expected

color对icon以及文字都生效

### What is actually happening

_No response_

### Any additional comments (optional)

_No response_