Perhaps something that Fleet Commanders should be aware of is that there are a few Color Blind (and/or other types of Visually Impaired) people floating around the Incursions communities. I don't really want to go into details of the types/kinds, but I do want to enlighten people as to the difficulties/dangers we "disabled" persons face. Most color blind people are not completely color blind - that condition is very rare. Most color blind people are simply "blind" to specific colors - commonly red/green, green/blue, blue/red. [This might also help other visually impaired pilots.] There is no reason that we should not take part in fleets, or that we can be a danger to fleets. At most we can lose our ship.
One of the most common issues is that we often can not see the difference between being yellow boxed and red boxed. So what I do is simply alert the FC or Logi that I am a "newbro" - generally they add me to the watchlist, which can save me from getting my ship popped. There is currently no way for us to change the colors directly (Eve GUI limitations). Most importantly if you get boxed by any NPC ship, broadcast immediately. Do not try to figure out if they are trolling or not. Sometimes they will yellow box you, but never actually fire, but you can not take the chance that they will not do so sometime. So do not broadcast "in position" until they release their locks. This will not inconvenience or affect the Logis much - they can see when you take damage or not, and will cycle their reps to people who need it.
Eve GUI/HUD has some issues that are difficult to correct, for example the standard green flashing of an activated module. To make it even worse it uses a white rotating border. On certain system backgrounds we can not see it. The danger is if you get distracted and forget to activate a tanking module. I always use the simulation mode before I enter a site to make sure my tank is online and active. I also generally ask in the chats what the background color of the primary incursion system is. This will give me the correct info to swap the color scheme to get the best color/contrast possible. Simply Google for "best contrast color for <insert background color>". You will get a list, then pick the one that stands out the most, and apply to the colorblind panel in the Game Settings panel (General Settings, bottom right).
One more important issue is the Fleet GUI. Every time you change your color scheme, you have to update the broadcast colors. This is one of the limitations of the Eve GUI - it follows the color scheme you selected, and will override the broadcast colors. Especially if you fly Logi or plan to fly one. If you plan to fly Logi, you have to take special care to get your colors setup properly for every incursion space. You can not miss a broadcast, or miss-click a repper and hope it is active. It is important to setup your color schemes beforehand. Depending on your type of trichromacy, and the difficulty in setting up, you might want to rather fly DPS or Sniper in some incursions. Always consider that the safety of the fleet is primary above your greed.
Finally, specifically for FC and LC, visually impaired people will not affect your fleet operations, no special actions are required. At most you may have to add an extra person to the watchlist. Suffice to know we are amongst you, and we might broadcast a little more than other people. I have flown all incursion roles, including Logi, since 2011 and very few people knew that I am color blind.