Draw a button in the component header. Method which returns an IEnumerator will start a coroutine

Arguments:

• string label = null: label of the button. null means using function name. If starts with $, then a dynamic label will be created to use a field/property/callback as label. Dynamic label when returning null or empty string will hide the button. Rich Label supported.
• string toolTip = null: tool tip for the button.

using SaintsField;
using SaintsField.ComponentHeader;

[HeaderLeftButton]
public void L1()
{
}

[HeaderLeftButton("<color=brown><icon=star.png/>")]
public void OnClickL2()
{
}

[HeaderButton]
public void R1()
{
    Debug.Log("R1");
}

[HeaderButton("<color=lime><icon=star.png/></color>+1", "Add a star")]
public void StartAdd()
{
    rate = (rate + 1) % 6;
}

[HeaderButton("<color=gray><icon=star.png/></color>-1", "Remove a star")]
public void StartRemove()
{
    rate = (rate - 1 + 6) % 6;
    // Debug.Log("OnClickR2");
}

[Rate(1, 5)] public int rate;