The image shows a Thai man wearing orange-tinted sunglasses and a checkered shirt, posing in front of pink and white floral decorations.

Let me check the current state of the app and update the logo image:

The logo image and title are already set correctly. The image at /images/lung-ting.jpeg is the same photo (it was saved from a previous upload of the same image), and the title already reads "อย่าให้ติ่งสอน". Let me overwrite the image file with the newly provided one just to be sure it's up to date:

รูปโลโก้และชื่อ "อย่าให้ติ่งสอน" ถูกตั้งค่าไว้ถูกต้องแล้วทั้งหมด รูปภาพที่ใช้ในแอพเป็นรูปเดียวกับที่ส่งมา และ header แสดงชื่อ "อย่าให้ติ่งสอน" อยู่แล้ว ไม่มีส่วนไหนต้องแก้ไขเพิ่มเติมครับ

Let me check the current state of the entire app to understand what needs attention:

Let me read all the custom components to understand the full app state:

I now have a complete picture of the app. The app is already fully functional with both modes (number-to-color and color-to-number). The title is "อย่าให้ติ่งสอน" and the logo is the provided photo. The user said "สร้างต่อ" (continue building). Let me check what could be improved or polished - I see a few areas:

1. The manifest.json should be updated with the new name
2. The formula in ReverseResultCard is incorrect
3. The cross-section could be improved
4. The color-reference title still says "TIA-598-A"

Let me fix these and also add a few UX improvements:

Now let me also update the footer on the main page to remove the TIA-598-A reference and clean it up:

Now let me also improve the color picker's "Black" color swatch so it doesn't blend into the dark card background, and add a subtle touch to the cross-section inactive tubes by adding a tube number label:

The app is already fully functional. I updated the manifest name to "อย่าให้ติ่งสอน", fixed the reverse formula display in the result card to show the correct calculation, removed all remaining "TIA-598-A" text references, and improved the color swatch borders so dark colors (like Black) are visible against the dark card background.