I double-checked and the stripe issue is fixed. I'll even give you the code to make the UCL numbers correct. Open competition kits table by loading your career or squad file into RDBM. Look at the left column and you will see this table:
Now select it. Scroll all the way to the right in order to find this column:
This tells us the ID of the team kit. Manchester United's ID is 11, so we scroll down until we see the kits for team 11:
Now we scroll all the way to the leftmost column and find all corresponding tournament IDs of 223 (which is the ID of the Champions League):
After selecting a table entry with the ID 223 and taking note of which kit is it (Home=0/Away=1/GK=2/Third=3), we need to edit 3 different things... the name, jersey number and shorts number.
The name is self-explanatory... we want it to be black. Although true black is 0-0-0 -- meaning Red=0/Green=0/Blue=0, most displays cannot produce that blackpoint. Therefore, EA has set 12-12-12 as the black point. The same is true of 220-220-220 for white, while true white is 255-255-255. Now one more point before we move on is that the columns are backwards, so it is going to go BGR. For the name, there will be one set of BGR values to edit:
The values for these three columns should be 12-12-12. Now we move on to the jersey number colors. Here we will need to look at the Man U UCL number to decide on the colors. We will be required to edit 9 values, in that there will be a BGR value for the red part, the green part and the blue part:
Here is the Man U UCL Number:
As you can see, we are clearly going to want that red value to be black, so 12-12-12 on the first three values. The next three will determine the green color. We are going to want that to be gold. So we enter that the values for gold: b=169 g=216 r=236... so you enter 169-216-236 into the next three columns. The last three will define the blue value, which should also be gold. So we enter the same value: 169-216-236. Now you only have to edit the shorts number, which is again a 9 column section:
Because the same number font is used for the shorts, we will adjust the values to fit the black shorts. They will be the opposite. So... 169-216-236 // 12-12-12 // 12-12-12