For my contribution to this project, said new bb and schematic (which required renumbering the pcb pins as well):
APA102-2020_newbb.fzpz (12.1 KB)
as always, print out a copy and check the footprint matches the device you actually have before committing to boards ...
Peter
Good work Peter. Hopefully it will work for @AlanChen .
@Old_Grey
@sublimeartistry
@vanepp
thanks you all for the help,
can't believe you guys can draw with this so fast 
comparing my "footprint made with pure pads" to yours
there's a bit different, but the actual part is more symmetric and look like yours.
I guess it'd work, and can't wait for 
btw, drawing wires,part with such dense pads can easily link to neighbor pads in Fritzing, is there any way to change
the default trace width?
Yes, just click on the trace, and in Inspector type any thickness trace up to 128"
Just remember some PCB manufactures don't do less than 0.006"
Remember to print out the PCB and check that it is 100% right, because you don't what to have to do a second one. Check that the footprint is bigger than the part so you can solder it from the side.
Default trace width, No. Unfortunately that is not something they have implemented yet. Although it is something that has been requested http://forum.fritzing.org/t/global-track-thickness-setting/3911/2 But as you are most likely aware Fritzing has slowed down on development so it may not be something that gets implemented unless one of us figure out how.
I do see that my pad is a little different then yours. My pads are the exact dimensions given in the datasheet for the solder pads.
Also one last thing. You may notice the silkscreen I added to the footprint overlaps the pads but on export Fritzing crops them to be between the pads.
Oh default. opps.
You can Routing/Select All Traces and change them all in 1 hit, it's just you would have to make all the small traces first and change them in a group and then make the others.
You can CTRL-click select all the traces one by one, and again group change them in Insp.
CA3096.fzpz (9.2 KB)
CA3096 Data Sheet
While parts creation has a steep learning curve, once you get over that parts are reasonably easy to make.
If you are planning a project with a lot of these, you need to be aware of their power issue (which you may already be). The internal oscillator in each chip is asynchronous so unlike sync multiplexer schemes the power does not average out. That means it is possible (and in fact likely, at at least some times) that all the chips will be drawing full power at the same time which (if you don't size the power supply appropriately) will cause seemingly random failures as the power drops and the chips reset. You either need a single power supply (and distribution system) capable of powering all the leds at full current at once or a series of smaller power supplies that can power a single or a couple of chips at full load (this can make distribution easier in terms of resistive loss in the power wiring.)
Peter
thanks for your awareness, I know, and power was planned to be separated with N-channel mos
Apa102 were widely used in POV projects, mostly sold in 5050 package LED strips
and this is not my first POV, likely 5th if i count. 2020 is not friendly for hand solder,
got a hot air gun&paste and already experienced with success air-soldering
I pick 2020 because it's small, can do dense POV, and its simple integrated driver
with a 18650 Lithium battery I got my POV with 72 apa102 -5050LEDs working well
I hope 100s of them, in 2020, work well too,
If not, I'll parallel a second battery, 
oh about part creation,
maybe I just can't hold inkscape crashing all the time,
I can draw my own board shape(and inkscape mess it up often)
but part's kinda much for me yet
breaking up to pads works well with easy/small parts to me,
most likely due to I use strange parts, such like some switchs(like those in hand-flashlights) , they dont have pins or leads, not a PTH/SMD part in general.
and needs custom designed pads for soldering, depends on how I'm using them. 
@Old_Grey sure, select all trace and change
are there group and layer like those features in PS/Sketchup/CAD in Fritzing?
if not, its still kinda better for me to set traces for each in this case,
I got my power lines as wide as possible, and SPI lines to 8-12 mils as they're under the part, short and don't need to be wide.
thanks for all 
I am looking for a Fritzing part for the 8x8 Matrix RGB LED Common Anode Full Colour LED 60*60mm modules you can get on eBay and other sources. Fritzing 0.9.3b has a 8x8 LED module, but it is single color. I've searched for it, but can't find it anywhere.
Any help would be much appreciated!
Which OS are you on? For me on Win7 Ink rarely crashes (xml editor screwups are the most common cause there, it doesn't like some types of group indenting) but a crash is pretty rare. When you say Inkscape messes the shape up, does that mean the scale gets wrong (i.e. its larger than it should be in Fritzing)? That can be caused by not having the document length and width set to units (it defaults to px which can cause scaling problems).
Peter
Hello, i made a Fritzing.class.php file in order to have a viewer for a fzz in svg format.
Everything work like a charm but i've some problem with rotations of components.
Instances rotations seem to be defined in the attributes ofinstance->views->breadboardView->geometry->transform
node but the format of it is a mystery for me, i see 9 parameters like m11="0.707107" m12="0.707107" m13="0" m21="-0.707107" m22="0.707107" m23="0" m31="15.9403" m32="-2.45825" m33="1"
for a simple 45° rotation, so far I have deduced by myself the logic of xml but on this data format, i'm lost ..
Any ideas ?
What's wrong with the "LED Matrix - Serial Interface - Red/Green/Blue" in the bin, it's RGB.
It's not the name thing. It only has pins for serial connections to a built in controller and a slightly different form factor. I want the raw matrix with the 32 pins for the 24 columns (R, G, and B times 8) and 8 rows.
I'm doing one, it will be up in a while.
Peter
Ahh, you want the full 32 pins.
Good work supplying the datasheet, it saves time.
I would create a new fritzing sketch and only put one part on the board and set its location to 0, 0 in the inspector and do not rotate it. Then save the sketch and open it in your editor and take note of the numbers. Then I would open the sketch again and turn the part once (45 degrees), save and re-check in the editor and take note of the numbers again. After that I would try moving the part a specified amount using the inspector and again after saving check it in your editor. You should be able to tell what changes take place for each type of move.
I have a layout and wanted to add a Note (about the interpretation of the LEDs).
I have Notes Layer visible, and have clicked the "Add a Note" button and/or presses the Add Note menu item, but can't seem to paste or enter any text.
Just worked. My original Notes appeared off the screen.
Well a while was a while longer than I expected because I forgot why I recreated this part for Brad's board, which is because the one in core is messed up. It did point out a few more things my parts script needs to look for though, so it wasn't wasted effort. Here is a part that I think matches the data sheet. Note you need to check the pcb footprint is correct because I used the same foot print (expanded) as the original part but the measurements don't exactly match the data sheet (which isn't all that clear on the pin spacing anyway). Its easy to change if it isn't right but I don't have any of the parts.
gtm2088argb-21.fzpz (34.5 KB)
Peter
While I'd probably try Sublimeartistry's suggestion first, if you want the technical explaination you are looking for transform matrixes in the svg spec. I think that the various editors use different ones and I don't know what Fritzing does (which is why trying it on Fritzing output is the best bet.)
Peter
