span label with color cannot renderer to markdown with color

[LiYeLin]

Describe the bug html like <span style="color:#07a9fe"> AAAAAA</span> after application run ,it become to **AAAAAA** i expect it will be like <font color=#008000>AAAA</font>

i use with simple way , please tell me , am i use it wrong way? or how to make it right, use "rendererOptions" function ? (my english is pool ,sorry)