Smooth coloring effect on textlabel text

[kokodani12]

Hello everyone !

Im currently trying to make the text of the textlabel to be smoothly colored ( from black to white and again black ) but only 1 word to be smoothly colored from the hole message.

But the best i manage to do is coloring letter by letter.

Tried with Rich text, Ui gradient ( but it color the GUI ) after seen other methods with the gradient but still didnt work and with Color3.

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local player = game.Players.LocalPlayer
local textLabel = script.Parent
local TitleEquipEvent = ReplicatedStorage.Titles:WaitForChild("TitleEquip")

local titleColors = {
    -- Rank Titles
    ["Starter"] = "#EEEEEE", 
    ["Rookie"] = "#36A236", 
    ["Beginner"] = "#3D79B6",
    ["Novice"] = "#8743CA",  
    ["Amateur"] = "#CECE2C", 
    ["Learner"] = "#A30D1F", 
    ["Recruit"] = "#23082A",

    -- Special Titles
    ["Developer"] = "special"
}

textLabel.RichText = true

local defaultText = string.format('<stroke color="#000000" thickness="2" transparency="0">%s: Test</stroke>', player.Name)

TitleEquipEvent.OnClientEvent:Connect(function(equippedPlayer, title)
    if equippedPlayer == player then
        if title == "Developer" then
          

            textLabel.Text = string.format(
                '<stroke color="#000000" thickness="2" transparency="0">' ..
                '<font color="#000000">D</font>' ..
                '<font color="#222222">e</font>' .. 
                '<font color="#444444">v</font>' ..
                '<font color="#666666">e</font>' ..
                '<font color="#888888">l</font>' .. 
                '<font color="#AAAAAA">o</font>' ..
                '<font color="#CCCCCC">p</font>' .. 
                '<font color="#FFFFFF">e</font>' .. 
                '<font color="#CCCCCC">r </font>' ..
                '%s: Test</stroke>',
                player.Name
            )
        else
            -- For all other titles, use RichText with predefined colors
            textLabel.RichText = true
            local titleColor = titleColors[title] or "#FFFFFF"
            textLabel.Text = string.format(
                '<stroke color="#000000" thickness="2" transparency="0"><font color="%s">[%s]</font> %s: Test</stroke>',
                titleColor, title, player.Name
            )
        end
    else
        textLabel.Text = defaultText
    end
end)

textLabel.Text = defaultText

Im trying to achive an effect like on the screenshot i sent.

[Negativize]

This effect is most definitely obtained through a UIGradient effect, not through RichText. You most likely just have your hierarchy wrong for actually using the instance.