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Née whiterider
retired moderator
Original Poster
#1 Old 23rd Jan 2008 at 7:06 PM Last edited by whiterider : 23rd Jan 2008 at 7:14 PM.
Default Mini-Tutorial: Making Custom Icons which Do Not Hurt One's Eyes
When making custom majors or careers, you'll almost always want to make a custom icon to go with them. However very often icons are made too big, with non-functioning magic pink backgrounds, or are just cropped out of photographs. When used alongside Maxian careers/majors icons like this break continuity, and when used alongside other custom careers/majors, they just look like a jumble of mess.

This mini-tutorial will explain how to easily make a neat and clean looking icon. It will not teach you how to use a graphics editor! However, it also won't require any advanced skills, so you certainly don't need to be an expert. If you're really clueless as to how to use yours, look up some tutorials on Google first.

If you don't already have a graphics editor, you can download the GIMP for free. Anything else such as Photoshop or PaintShop Pro will be fine too. You cannot use MS Paint!

Finding a Source Image

Most of the time, you'll have some idea of what you want your icon to be - but won't have anything to base it off. If you plan to hand draw your icon, you can skip this bit.
As inspired by the set of wooden dolphins on my windowsill, we shall here find a suitable image with which to create an icon of a dolphin. Maybe not something anyone is ever likely to write a career around, but variety is the spice of life, after all.

As with everything computer-related, if you want it but don't have it, Google is your friend. However you'll soon see that Google is one of those intensely annoying friends who never gives you a straight answer. A Google image search for dolphin, for example, brings up lots of pretty photographs of dolphins. All of which are utterly useless.

You remember that school teacher who, whenever you said "Please can I go to the toilet?" responded with "Well, I sure hope so. Maybe you should go to the doctor if not." ? That's Google. You have to ask it for exactly what you want. Adding the right words can work wonders - a few that are often useful include icon, silhouette, cartoon, clipart, logo - and you'll pick up a few more with practise.
As you'll see, adding those to your search terms improves the results by a long way. Searching for "dolphin icon" gives us lots of useful results.

Your image should not be...

Overly detailed, or have text on it. You're going to make this image very very small. What starts out like this:

Will end up like this:

You should use an image with a complete outline, or something very close to it. You'll have to expend a lot of effort hand drawing the outline if you use anything like this:

Do not use a straight photograph. Just don't do it.

Once you've found your image, paste it into your graphics editor. We'll use this one as an example:

Turning it into an Icon

This bit is fairly simple. A bunch of things to get right, but they're all easy so long as you know of them.

First off, is that thing you know never to do in any other area of modding. The thing which is reject-worthy in clothing and object recolours; the forbidden bucketfill.
Open the colour selection screen for your bucketfill tool, and set the colour value to R:5 G:6 B:113. It should look something like this:

This colour is Maxis Blue, and it will always be the only colour used in your icons. You can fiddle with transparency, have translucent edges etc - but you never change that colour!

Now - bucketfill! Make sure to get all the little fiddly bits. If your source image is multicoloured, or you find that you get bits of stray colour at the edges of bucketfilled areas, you probably need to turn your bucketfill Tolerance up. The option should be in Tool Options or similar - about 80 is a good value to use for this, 100 is bad!
If your bucketfill is just covering up everything, regardless of tolerance, make sure you have it set to RGB value/colour match mode - this should also be in Tool Options. Once you're done, you should have this:

Now we see why text and fine detail is such a bad idea. We're going to resize the icon. In order to have it fit in the space given by the UI, without overlapping the text; we're going to make our icons 36x36 pixels. Told you they were going to be small.
Resizing often presents problems. It may be you need to Undo the resize and delete or paint over something. With our dolphin, the lower fin on the far side is made completely unrecognisable:

In this case it's probably easiest to delete the fin on the 36x36 image, which leaves us with this:

This looks a lot better, but is a bit rough around the edges. We'll smooth it off shortly, but first we need to get the background right.

This is the thing most often forgotten by creators. You must use a transparent background! It doesn't matter how well made the icon is, if it pops up on the UI with a big block of white around it, it will look tacky.
Any good graphics editor has an option to change the background colour of an image. But I'm using PSP7, so we'll do it the long way instead.

Make a new image, 36x36, 64 Bit, background colour Transparent. Now select all of your current icon, and copy it. Paste it onto your new image as a new layer. The colour may get mottled when you paste - if so just bucketfill over it again. Now whip out the eraser tool (this time at 100% opacity), and get rid of all the whitespace.

Now our icon is looking as it did before, and is now on a transparent background. It still has those annoying rough edges, though.

To smooth it off a bit, we can use an eraser tool set to about 30% opacity to make those ugly corners look less juddery. One click of the eraser on each corner pixel usually works well, and the image should start to look smoother:

And there you have it. Save as a png, or another format which supports transparency, and you have a perfect icon.

In Summariness (Yes, you may groan)
Use an image which can easily be bucketfilled into a silhouette, with no fine detail or text
Do not use a photo!
Use the colour R:5 G:6 B:113
Use 36x36 pixels
Have a transparent background. Note - magic pink is ok if it works ingame, but put the icon on a white background for the upload thumbnail.

And now you can upload careers and majors without causing the queue moderator to put on sunglasses!

What I lack in decorum, I make up for with an absence of tact.
Top Secret Researcher
#2 Old 25th Jan 2008 at 12:28 AM
Test Subject
17th Jun 2008 at 6:59 PM
This message has been deleted by raym0nd.
Test Subject
#3 Old 25th Jul 2008 at 10:55 PM
Cheers!!! I taught i was finished i'd completly forgot bout de pic. Tanx!!!
Test Subject
#4 Old 8th Aug 2008 at 11:49 AM
thanks a lot!
Lab Assistant
22nd Aug 2008 at 11:25 AM
Default Where does the Custom Icon go?
This message has been deleted by coko. Reason: Saw my answer in another thread
Mad Poster
#5 Old 17th Oct 2008 at 4:07 PM
Thank you for the tutorial :-) I finally figured out what I was doing wrong! :-D
Test Subject
9th Nov 2009 at 5:03 AM
This message has been deleted by Sims_torturer_007. Reason: saw an answer in the body text
Test Subject
#6 Old 31st Jul 2010 at 2:59 AM
thank you so much!

Lab Assistant
#7 Old 7th Feb 2011 at 6:39 PM
Wow, thanks Whiterider! I've been planning to try out making a career for my Sims for a while now, but I wasn't sure how to make the icon - a great guide for a first timer!
Test Subject
#8 Old 15th Dec 2011 at 1:26 PM
I have just dug up this thread because I have finished my first career icon using Photoshop and thought I'd share some tips. Only to find most of it has already been posted here.

However, if you are using Photoshop, there is a way to increase the quality even more.

Instead of using bucket fill and the eraser, both of which may result in 'messy edges', try the following when using Photoshop:-

1. In the 'Layers' panel, right-click and select 'Layer from background'
2. Select your image using the Magic wand
3. Right click and choose 'Select inverse' (This will select everythin that is NOT your image)
4. Hit the delete key, then deselect from the Magic wand

You will now be left with your icon on a transparent background. Then:-

4. In the 'Layers' panel, right-click and select 'Blending options'
5. Go to 'Colour overlay' and select the same blue as detailed above. This will colour your layer blue, but it will do it with smooth edges, rather than the blocky 'bucket fill' method.
6. For the perfect finish, also select 'Outer glow' in the blending options. Again set it to the same blue as detailed above, and set the pixel size to 2. This will create a very subtle softening of the outer edges with semi-transparency, so it will blend perfectly with the background in-game.

Hope this helps all you Photoshop users.
Test Subject
#9 Old 6th Mar 2015 at 2:00 PM
Originally Posted by Nysha

This colour is Maxis Blue, and it will always be the only colour used in your icons. You can fiddle with transparency, have translucent edges etc - but you never change that colour!


So, just curious why we have to use that particular colour in the icons? Will the game not work with other colours?
Test Subject
#10 Old 23rd Sep 2015 at 10:00 PM
Originally Posted by starmusicfly
So, just curious why we have to use that particular colour in the icons? Will the game not work with other colours?

It's clearly said in the tutorial that you have to because the game will not read any other color.
Test Subject
#11 Old 23rd May 2019 at 3:49 AM
Is this process for Sims 4? And does it still work? If not could anyone point me in the right direction?
Lab Assistant
#12 Old 31st May 2019 at 3:52 AM
This tutorial is for TS2. So no. Icons in the TS4 look very different and I'd assume are made differently (I haven't made anything for TS4 before)

Also please leave dead threads dead. You'd probably be better off making a new thread in the TS4 section
#13 Old 3rd Jun 2021 at 10:34 AM
I see this hasn't had a reply for 24 months, but hopefully someone can help me out! I have made an icon with a transparent background saved as a png but in SimPE when I go to replace it the png option doesn't show up. I then created the icon as a jpg giving it what I thought was a transparent background and that does show up to replace it, but in game it's a white background. How can i change it to the png when it doesn't sem to support that format yet says it does? Thanks.

Rome wasn't built in a day

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Top Secret Researcher
#14 Old 4th Jun 2021 at 7:15 AM Last edited by topp : 4th Jun 2021 at 7:29 AM.
JPEGs don't support transparency, so that's why your graphic was showing up with a white background. Try replacing the white with hot pink/magenta color, which the game ignores when constructing the image, resulting in proper transparency.

If it shows up with a pink background anyway, try re-importing the PNG one to SimPE by doing one small change:
right click, Replace...
In the File Explorer window that pops up, use the drop down box (next to the cancel button) to change the types of files that are showing to "all files," and try selecting your PNG file now.

Originally Posted by starmusicfly
So, just curious why we have to use that particular colour in the icons? Will the game not work with other colours?
I know the question is ages old, but I wasn't happy with the answer someone provided.
Yes, it will work regardless of which color you pick for the icon, however; the Maxis Blue is the standard color that all the Maxis majors, careers, etc. use, so choosing colors other than MB would result in the custom major standing out too much from the stock ones or looking just plain tacky, which is not up to MTS standards.
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