The grid indicates that you're running Color Finesse in trial mode. You don't say what version of After Effects you're using, or whether you're on Window or Mac, so I can't be very specific about things.
There are two things I can think of. In CS5.5 and later, when you first apply Color Finesse to a layer it will prompt you for a name and (optional) organization. You must enter something here. If you instead just click on cancel you'll get the pink grid lines. To fix this, restart After Effects, apply Color Finesse to a layer, then enter a name/org when prompted. This grid lines should then be gone from then on.
The other possibility is that you installed the Color Finesse PI installer from our website. Because it's running in trial mode you'll get the grid. If this is the case, let me know what version of After Effects you have and whether you're on Mac or Win and I can provide specific instructions for uninstalling the trial version and recovering the version of Color Finesse which came with After Effects.
I'm in the Creative Cloud,version 12.2.5. I'm guessing since I'm on the college computer using a Mac desk top that the ColoR finesse is in the trial version mode. Does Creative Cloud come with Color Finesse or is it a plug in that has to be purchased? Also I appreciate you responding to my question so quickly thank you kindly!
Color Finesse 3 LE is included with After Effects and is installed automatically when After Effects is installed. The only reason to upgrade to the paid version is if you want to use Color Finesse in Premiere Pro as well as in After Effects.
Since it's a college computer, do you have the ability to install/uninstall software? Many colleges lock down the computers to limit such access. You'll need full access, including an admin password, to use the following steps. If you're not allowed the necessary access, you can pass the following along to whoever does computer administration.
To remove the trial version, delete the entire "Synthetic Aperture" folder found in:
(Note that this is the Library folder at the base of your boot drive, not the one in your home folder.)
Next, re-enable the bundled version of Color Finesse by going to the following folder:
/Applications/Adobe/Adobe After Effects CC/Support Files/Plug-ins/Effects/Synthetic Aperture
Now, within that "Synthetic Aperture" folder you'll find a plug-in with parentheses around the name:
(SA Color Finesse 3 AE64)
Remove the parentheses from the filename so AE will see it. Do NOT remove the parentheses from the "(CF3 Support)" folder or AE will launch very, very slowly, and Color Finesse won't work right.
Finally, within the "(CF3 Support)" folder, locate the "(SA Color Finesse 3 UI)" application and remove the parentheses.
Launch AE, apply Color Finesse to a layer, enter a name, and you should be good to go with no grid lines.
Is Synthetic Aperture free now premiere or is it still only available for free with after effects. I thought I saw somewhere that it was free for premiere as well.
Adobe licenses and distributes our Color Finesse LE version, which is only for After Effects.
To use in Premiere Pro you'll need to upgrade to our Color Finesse PI product. Discounted upgrades from the LE version are available on our website.