Q&A for How to Make a Google Chrome Theme

If you share it, yes. If you only pressed the "download" button instead of the "share button," then no one else will be able to see it.

As of now, you can only upload a single picture as a background (one for the toolbar and one for the tab background). I recommend using a photo collage editor to place multiple photos into one image file that can be used.

If you want to use images from the Internet, you'll need to download them first. Search up what you want on Google Images (or similar) and find an image you want to use. Right-hand click it and select 'Save Image As...', then save it somewhere onto your computer. When you upload an image (Part 2 Step 2), browse to where you saved the image and open it.

Try a different image. The image you selected may not be big enough, or it might not have enough pixels.

No. Putting multiple pictures into one slot is not possible, but making a photo collage and uploading it will work.