Is a flame particle texture the actual flame? Or is that just an attachment to it... Because I see flame particle textures on market for all different prices and I am wondering if those are actual flames or just attachments.

Flame Particle Texture is a texture for flame particles. Without a flame, you dont have any flame particles

Flames have those small circles. You edit them with the FPT.
You could buy flames or forge them.

in the market the actual flames are the ones with (id:6969) in the bottom of the name.

Oh, so can you not buy flames from a shop? It must be bought on market?

no. you either forge them ingame by pressing CTRL+L or buy premade flames. personally, buying premades is much more cheaper than forging.

You could buy it on the Particle Flames section or the Market. Forging is too expensive but if you want to make a custom flame then go.

I will just look into buying one. Thanks for the help

The Flame Particle Texture item works in a backwards color manner on a flame. If the flame is blue and you add a flame particle texture of the opposite color it will appear blue but if you use a blue particle texture on a blue flame it will appear as the opposite color of blue. Just some... flame particle texture trivia.

So if I wanted blue I would have to get the opposite of blue to get blue on my particle texture if my flame particle was already blue?

Yes.

So basically a chart like the one below would tell you the basic color opposites of the main primary colors.

A website such as this one below...
http://www.colortools.net/color_complementary.html
would tell you the exact opposite color you entered in hexadecimal format. It would then display the opposite hexadecimal color of the one you chose. Programs like Photoshop and GIMP can read hexadecimal colors. They allow for a very exact color definition. Like below...
Red is #FF0000
Blue is #0000FF
Hot Pink (like in my avatar and signature) is #FF0099
White is #FFFFFF
Black is #000000
Don't try to guess colors because they never make sense in hexadecimal format even though they are all based on logic.

In essence the opposites correspond with each other. #FFFFFF (white) is the direct opposite of #000000 (black) and would be displayed as such in a flame particle texture.

Here is a chart of hexadecimal colors...

The colours represented by hexadecimal values are based on RGB, rather than RYB. If you wanted blue, rather than using the complementary colour suggested by the traditional RYB wheel, orange, you would colour the flame particle texture yellow instead.

Colour changing works best with a black flame (or a white flame, if it's a "blend" flame). Any other colour, and there is no guarantee that you will be able to have the colour that you want. In addition, brightness functions as opacity, so it isn't possible to recolour a black flame into a white flame, as black on the particle texture would produce an invisible particle.