Make Label Color Lighter More Translucent

[niner35]

Below is an add label that shows RVol in a chart i use. It is helpful but often covers up important information.
I saw posts here about Show and Global Color that can make a label with lighter or more translucent/transparent color.
I tried but could not get it to work. I cant do much more than cut and paste.
Could someone add the needed code to it? It would be greatly appreciated.
I am first time poster here. Was not sure if to append to related threads. Since they were old i posted new.

Many thanks.

input offset = 1;
input length = 21;

def ADV = Average(volume, length)[offset];
def rVol = volume / ADV;

#DefineGlobalColor("", Color.CURRENT);
AddLabel(yes, " RVOL: " + Round(rVol, 2), if rVol > 10 then Color.VIOLET else if rVol > 8 then Color.DARK_GREEN else if rVol > 6 then Color.GREEN else if rVol > 4 then Color.LIGHT_GREEN else if rVol > 2 then Color.LIME else if rVol > 1 then Color.PINK else if rVol < 1 then Color.BLACK else Color.BLACK);

 

[AndrewPnF]

Below is an add label that shows RVol in a chart i use. It is helpful but often covers up important information.
I saw posts here about Show and Global Color that can make a label with lighter or more translucent/transparent color.
I tried but could not get it to work. I cant do much more than cut and paste.
Could someone add the needed code to it? It would be greatly appreciated.
I am first time poster here. Was not sure if to append to related threads. Since they were old i posted new.

Many thanks.

input offset = 1;
input length = 21;

def ADV = Average(volume, length)[offset];
def rVol = volume / ADV;

#DefineGlobalColor("", Color.CURRENT);
AddLabel(yes, " RVOL: " + Round(rVol, 2), if rVol > 10 then Color.VIOLET else if rVol > 8 then Color.DARK_GREEN else if rVol > 6 then Color.GREEN else if rVol > 4 then Color.LIGHT_GREEN else if rVol > 2 then Color.LIME else if rVol > 1 then Color.PINK else if rVol < 1 then Color.BLACK else Color.BLACK);

Global colors are the best way I'm sure. I've never gotten it to work correctly for me either. You can also use the create color option. ex. createcolor(250,100,100) that uses RGB coloring. The Highest number being the color preference and the other two numbers adding more or less "transparency". So 250,100,100 is going to be red with a certain transparency. 250,200,200 is going to be more muted/ transparent.

 

[rad14733]

@niner35 You might also find AssignNormalGradientColor() helpful...

 

[Joshua]

The fourth+ color parameters like transparency and alpha are not included in the color functions. The label's color needs to be connected to a color swatch in the script's input settings, and then the transparency must be adjusted manually.

plot DummyPlot = Double.NaN;
AddLabel(yes, " x x x x x x x x x x x x x x ", DummyPlot.TakeValueColor());

In your case, you're changing between many colors. So, yes, it would probably be best to expose them as globals. You would still need to manually adjust each of them.

defineGlobalColor("Green",CreateColor(0,255,0));
defineGlobalColor("Red",CreateColor(255,0,0));
#defineGlobalColor...

AddLabel(yes, "TEST",
    if Yes then globalcolor("Green")
    #else if...
    else globalColor("Red")
);