how to change color of lines in drawings

[arsalan_sarwar11895]

Hi Guys
I noticed from some days that when I open this drawing in morning first thing I found this in this condition ( the lines color is black)

After doing some work its become white, like this

First of all I want to know why its happening (sorry for I am not expert in Inventor but in Catia and Creo).

Second is I want it to remain lines black. Please help

[arsalan_sarwar11895 · Accepted solution]

I got what I need by searching for layer and change the layer color. 😎