Need help in my 2d game

Hello community, I’am new here. My name is Matias, and i could use a little of your help with my project, thanks.
I want to create my own neon objects, like it’s shown in this picture. I have been looking in google but i can’t find a way to do that, or what program should i use. I would like your help, if you know how to create those neon 2d objects, for my 2d game.

Thank you very much.

Photoshop to create a square. Assign it to a material in Unity and give it a bright color and set the transparency somewhere in the center.

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Thanks for the fast replay, i will try that!

If you have Photoshop, I’ve found that drawing your shape in a bright color, then adding an outer glow effect in blending options produces a decent neon result:

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Yeah, you are right. That looks amazing, i will work on that.
Thank you!